SCERT Kerala Textbooks for Class 7 Arabic | Kerala State Syllabus 7th Standard Textbooks

SCERT Kerala Textbooks for Class 7 Arabic

SCERT Kerala Books Class 7 Arabic: The State Council of Education Research and Training(SCERT Kerala) publishes Arabic textbooks for Class 7. The SCERT Samagra Kerala Class 7th Arabic textbooks are well known for it’s updated and thoroughly revised syllabus. The SCERT Kerala Arabic Books are based on the latest exam pattern and Kerala State syllabus.

SCERT Kerala keeps on updating the Arabic books with the help of the latest question papers of each year. The Class 7 Arabic books of SCERT Kerala are very well known for its presentation. The use of SCERT Kerala State Books for Class 7 Arabic is not only suitable for studying the regular syllabus of various boards but it can also be useful for the candidates appearing for various competitive exams, Engineering Entrance Exams, and Olympiads.

SCERT Kerala Class 7 Arabic Books PDF Download

Students can download the Samagra SCERT Kerala Textbooks for Class 7.

SCERT Kerala Class 7 Arabic Books are provided in PDF form so that students can access it at any time anywhere. Class 7 SCERT Kerala Syllabus Arabic Books are created by the best professors who are experts in Arabic and have good knowledge in the subject.

The SCERT Kerala syllabus mainly focuses on this book to make it student-friendly to make it useful for both the students and the competitive exam aspirants. The book covers a detailed Arabic based on the syllabuses of various boards. SCERT Kerala Arabic Books for Class 7 is perfectly compatible with almost every Indian education state and central boards.

We hope that this detailed article on SCERT Kerala Samagra Textbooks for Class 7 Arabic helps you in your preparation and you crack the exams or competitive exams with excellent scores.

Loktak Lake History, Map, System, Pollution and Importance

Loktak Lake

Loktak Lake of North East India is famous for its freshwater and mixed soil, vegetation, and other organic matters. This lake is situated in Manipur, India. This lake has been a source of sustenance for around 55 villages of India and serves them with fresh water, food, good shelter, and sustenance. Also, the lake is famous with another name as a floating lake. It is because of the large vegetation that it supports.

Loktak Lake Details

Name of the River Loktak Lake
Primary Source of Inflow Manipur River, tributaries, and Ungamel channel
Location Moirang, Manipur, India
Length 35 kilometres
Breadth 13 kilometres
Importance
  • a fresh source of water
  • hydropower generation
  • irrigation
  • source of livelihood to the people living around
Pollution  anthropogenic activities, sewage waste disposal, disposal of domestic waste, pesticides, and fertilizers

About Loktak Lake

Loktak Lake in Manipur has been an ancient lake that serves around 55 villages for freshwater and domestic use. Also, farmers are completely dependent upon it for irrigation and agricultural activities. Loktak Lake is famous for Phumdis that surrounds it for around 40 sq. kilometres.

In North-East India, Loktak Lake is the largest freshwater lake with another name as “Floating Lake.” For the past many years, this lake has been a source of food, freshwater, carrying occupation, hydropower generation, and carries sustenance. Most of the fishermen depend upon this lake for their livelihood.

Thus, this lake has become a zone of biodiversity and carries highly populated villages by its sides. The lake covers a direct catchment area of 980 sq. kilometres and an indirect area of 7157 sq. kilometres. Also, this lake is considered a sub-basin of the Manipur River. The area around the lake is highly prone to have heavy rainfall for the entire year.

Loktak Lake History

Loktak Lake is famous for its floating island formation that we call Phumdis. Phumdis is the circular vegetation that is made up of a mixture of soil, vegetation, and other organic matter. The mixture is now thickened into solid since past many years. It is home to around 200 aquatic species of plants and 400 species of animals.

Also, a dam was built on the lake in the 1980s, and today it supplies hydropower to different states of India. According to the history of Loktak Lake, this lake supports floating islands and a national park. Manipur River is the source for the formation of this lake. This lake has been serving around 55 villages for the past many years for vegetation, freshwater, irrigation, domestic water use, and agricultural purposes.

Keibul Lamjao National Park is built over the lake, and today it is famous for being the world’s floating national park which lies in the middle of Loktak Lake.

Have a look at the List of Important Lakes in India that you need to know for your competitive exams to score well.

Loktak Lake Map

Manipur is the famous state of India for its heavy rainfall areas throughout the year. Also, another reason why people love visiting this location is Loktak Lake. Manipur River gives birth to this floating lake which provides sustenance and livelihood to many people. The Manipur River rises from Karong and flows through south o0f Imphal.

Further Loktak Lake forms the direct catchment area of 980 sq. km from which 430 sq. km is for paddy cultivation, and 150 sq. km is covered under habitation. The remaining 400 sq. km is the forest area. At the South of Imphal valley, this lake forms marshy land and has large pockets of freshwater.

There are two main zones of the lake, which are known as “Buffer Zone” and “Core Zone.” Buffer Zone is also known as the balance area, and Core Zone is known for the protected area. At the South of this lake, there are some islands formed names as Sendra, Lthing, and Thanga islands.

Loktak Lake System

Loktak Lake is 35 kilometres in length and 13 kilometres wide that has direct and indirect catchment area. The lake rises from the Manipur River and flows south of the capital city Imphal. The important fact about this lake is it’s another name “floating lake.” This lake covers the floating mixture of soil, vegetation, and other organic matter which forms a solid area known as Phumdis.

In the middle of the lake, there is a floating national park which is Keibul Lamjao National Park. It is a natural formation without human aid and thus famous in the entire world.

Loktak Lake Pollution

More than 55 villages are dependent upon Loktak Lake for domestic use and freshwater. However, people dump domestic waste and sewage waste into it, which causes a risk of pollution for this freshwater source. Different studies have been conducted to check the pollution level of the lake. The main studies were conducted on the five villages that depend upon the lake for every domestic task.

Due to urbanisation, the lake has been turning polluted over and over. The consistent drainage of municipal waste, pesticides, and fertilisers has been draining the quality of water. Also, other domestic human activities like bathing, washing clothes, and utensils is a serious threat. The studies are conducted to find the level of water quality drained over the years and what other human activities are responsible for harassing this natural beauty.

Loktak Lake Importance

There could be many reasons why people overlook to visit and explore Loktak Lake and the areas around. It is a perfect holiday destination to know what makes this lake so special. The very first reason is famous for floating Phumdis and floating islands and a national park present on the lake.

People go boating and explore Phumdis which are the circular solid areas surrounding water in it. Through boating, you can reach different floating islands which is a unique experience for people throughout the world. Keibul Lamjao National Park is the only natural floating National Park in the entire world. It is famous for two species- Brow-antlered Deer and the Dancing Deer.

At Moirang, there is an INA Memorial Complex where the Indian National Army unfurled the first Indian flag on Indian soil in the year 1944. Thus, the area is known for bravery and valour. People visiting Loktak Lake also visit this area.

Loktak Lake 1

Short Essay On Loktak Lake

Northeast India is famous for the freshwater lake in Moirang, Manipur named Loktak Lake. It is the world’s natural floating lake which forms floating islands, Phumdis, and a National Park. The lake originated from the Manipur River at Moirang and flowed south of the capital city, Imphal. It is about 35 km long and 13 km wide that has a direct and indirect catchment area.

Also, people in Manipur celebrate Loktak Day every year on 15 October at the periphery of this lake. For the past many years, this lake plays an important part in 55 villages surrounding it. It is the basic source of drinking and fresh water for domestic use. Also, a dam was built on the lake, which generates a large amount of hydropower to serve different states.

Around 1,00,000 of the population is dependent upon this lake for water use. Five main villages are completely dependent on it for water and hydropower. This lake is valued for its biodiversity of 200 aquatic plant species and 400 aquatic animal species.

10 Lines On Loktak Lake

  • Loktak Lake originates from the Manipur River in Moirang, Manipur India. It is home to several plants and animal species.
  • This lake is the largest freshwater source for 55 villages for domestic use.
  • A dam was built in the 1980s which is responsible for high hydropower generation.
  • This lake is famous throughout the world for being the natural floating lake to have mixed floating vegetation, soil, and other organic matter.
  • Loktak Lake has a floating National Park named Keibul Lamjao National Park that locates on Phumdi.
  • The meaning of Loktak Lake is defined as Lok means stream, and Tak means till the end. Many small and big islands float on the surface of the lake.
  • The reason why people visit this lake is its natural floating beauty. People visit different floating islands and the national park through boating.
  • Loktak Lake performs a big role in the economy of Manipur state. It is the basic source of use for nearby areas.
  • Loktak Lake is 35 km long and 13 km wide with direct and indirect catchment areas.
  • The lake receives an annual rainfall of 1,183 mm and has a tropical monsoon climate throughout.

Loktak Lake 2

FAQs On Loktak Lake

Question 1.
Which is the largest Lake in NorthEast India?

Answer:
Loktak Lake is the largest lake in the NorthEast side of India to serve people with freshwater and high hydropower generation through its dam.

Question 2.
What is Lake Loktak famous for?

Answer:
The speciality of Loktak Lake is the floating vegetation, soil, and organic matter that form Phumdis. Also, floating National Park is the reason why people visit this lake.

Question 3.
What does Loktak Lake mean?

Answer:
Loktak word is formed with the combination of Lok, which means stream and Tak, which means till the end.

Question 4.
Is Loktak Lake natural or man-made?

Answer:
Loktak Lake is a natural and the largest floating lake in the world that locates in Northeast India. This freshwater lake forms floating Phumdis, islands, and a floating National Park. It is home for 200 aquatic plant species and 400 animal species.

MCQs on Linkage and Crossing Over For NEET 2023

MCQs on Linkage and Crossing Over For NEET

NEET Biology is the scoring paper in the medical entrance examination. Here, you will discover the NEET Biology MCQ Questions for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Biology objective questions on air pollution and improve your subject knowledge & problem-solving skills along with time management. NEET Biology Linkage and Crossing Over Multiple Choice Questions make you feel confident in answering the question in the exam & increases your scores to high.

MCQs on Linkage and Crossing Over

1. Crossing-over takes place in the
(a) Diakinesis stage
(b) Anaphase stage
(c) Pachytene stage
(d) Leptotene stage

Answer

Answer: (c)


2. There are 4 pairs of chromosomes in a Drosophila. The linkage groups present in it are
(a) one more than the pair of chromosomes
(b) one less than the pair of chromosomes
(c) four
(d) eight

Answer

Answer: (c)


3. Percentage of crossing over is more when
(a) genes are located in a different cell
(b) genes are not linked
(c) linked genes are located close to each other
(d) linked genes are located far apart from each other

Answer

Answer: (d)


4. If the percentage of crossing over between two genes is 10, then the distance between two genes will be
(a) 5 morganoid
(b) 10 morgan
(c) 20 centimorgans
(d) 40 map units

Answer

Answer: (b)


5. Alleles of different genes that are on the same chromosome can occasionally be separated by a phenomenon called
(a) crossing over
(b) continuous variation
(c) epistasis
(d) pleiotropy

Answer

Answer: (a)


6. Repulsion and coupling are two faces of
(a) mutation
(b) chiasmata
(c) linkage
(d) crossing over

Answer

Answer: (c)


7. If gene frequency between genes a and c is 2%; b and c is 13%; b and d 4%; a and b 15%; c and d 17 and a and d 19%. The sequence of genes in a chromosome is
(a) a,d,b,c
(b) d,b,a,c
(c) a,b,c,d
(d) a,c,b,d

Answer

Answer: (d)


8. This is the reason why Mendel did not recognize linkage phenomenon in his experiments
(a) he studied only pure plants
(b) he did not have a powerful microscope
(c) characters he studied were situated on different chromosomes
(d) many chromosomes to handle

Answer

Answer: (c)


9. In a linear chromosome map distance between 4 loci is as follows a-b is 10%, a-d is 3%, b-c is 4% and a-c is 6%. The crossover frequency between c and d is
(a) 4-12%
(b) 3-6%
(c) 9%
(d) 3%

Answer

Answer: (d)


10. Where does this evidence come from? – crossing over takes place at a four-stranded stage and not at two stranded stages of chromosomes.
(a) studies on linkage maps of chromosomes in Drosophila
(b) studies of meiosis in maize
(c) 4:4 organization of ascospores in Neurospora
(d) 2:2:2:2 organization of ascospores in Neurospora

Answer

Answer: (d)


Difference between Precis and Summary & Their Similarities

Difference between Precis and Summary

Introduction

In many parts of the play, we have to extract the main idea just by reading a piece of information, and that is exactly what Precis refers to. On the other hand, in summary, the reader or listener decides the main points that need to be expressed. So let us get a brief idea about what is Precis or Summary.

You can also find differences between articles on various topics that you need to know. Just tap on the quick link available and get to know the basic differences between them.

What is the Difference between Precis and Summary?

About Precis

A small miniature of any piece of writing which provides the absolute main point of that writing or article can be defined as precise. It must consist of an appropriate heading and also maintains the order of the original piece written. The essential points are usually mentioned here in precis. The tone of the speech used is the same throughout the read. In precis, the conclusion is a must at the end, which will justify the other main points described.

About Summary

The summary can be described as a brief of all the recorded points in any article. Any passage or article with a shortened variation depicts a summary, where the headline is necessarily not so important. Not only the headline but also the order needs not to be maintained, covering all the important points. The tone used in summary varies and necessarily is not needed to be in order. The summary can also skip the conclusion, and mean the same.

Difference between Precis and Summary 1

Difference between Precis and Summary

PRECIS SUMMARY
It must have a heading. A heading is not that required.
It is just a small replica of the article. It is a brief description of the article.
The order should always be maintained here. No need for maintaining the order
It contains the main or essential points. It covers all the important points.
The same tone is used throughout. It is expressed in terms of readers own words.
The main idea has to be extracted. The idea is already extracted in the shortest form possible.
It contains a conclusion as well. Not every time ends with a conclusion.

Difference between Precis and Summary 2

Similarities between Precis and Summary

  • Both the precis and the summary provide the gest of the original work in a shortened form. One may not contain the headings or the conclusions, but the point remains the same.
  • No addition of idea occurs. The facts remain the same all without changing. No factual ideas slide into the article.
  • If we see in a structured way, we can mark that one-third of both the original texts, in precis and summary, maintain the order and complete the sentences’ meaning.

Frequently Asked Questions on the Difference between Precis and Summary

Question
What is the difference between abstract Precis and summary?

Answer:
Where in one hand a summary can use paraphrasing or original words or both abstract precis focuses on summing up the academic or official document.

Question
How do you write a precis summary?

Answer
Focus on reading the original piece and the appeals the author used. Try to get into the core points. Always remember to follow up the standard format.

Question
What are the types of Precis?

Answer
They are of four types, which are basically precis of speech, precis of continuous matter, precis of correspondence and telegraphese

SCERT Kerala Textbooks for Class 7 English | Kerala State Syllabus 7th Standard Textbooks

SCERT Kerala Textbooks for Class 7 English

SCERT Kerala Books Class 7 English: The State Council of Education Research and Training(SCERT Kerala) publishes English textbooks for Class 7. The SCERT Samagra Kerala Class 7th English textbooks are well known for it’s updated and thoroughly revised syllabus. The SCERT Kerala English Books are based on the latest exam pattern and Kerala State syllabus.

SCERT Kerala keeps on updating the English books with the help of the latest question papers of each year. The Class 7 English books of SCERT Kerala are very well known for its presentation. The use of SCERT Kerala State Books for Class 7 English is not only suitable for studying the regular syllabus of various boards but it can also be useful for the candidates appearing for various competitive exams, Engineering Entrance Exams, and Olympiads.

SCERT Kerala Class 7 English Books PDF Download

Students can download the Samagra SCERT Kerala Textbooks for Class 7 English Medium.

SCERT Kerala Class 7 English Books are provided in PDF form so that students can access it at any time anywhere. Class 7 SCERT Kerala Syllabus English Books are created by the best professors who are experts in English and have good knowledge in the subject.

The SCERT Kerala syllabus mainly focuses on this book to make it student-friendly to make it useful for both the students and the competitive exam aspirants. The book covers a detailed English based on the syllabuses of various boards. SCERT Kerala English Books for Class 7 is perfectly compatible with almost every Indian education state and central boards.

We hope that this detailed article on SCERT Kerala Samagra Textbooks for Class 7 English helps you in your preparation and you crack the exams or competitive exams with excellent scores.

MCQs on Neurons Nerve Impulse

MCQs on Neurons Nerve Impulse for NEET

NEET Biology is the scoring paper in the medical entrance examination. Here, you will discover the NEET Biology MCQ Questions for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Biology objective questions on air pollution and improve your subject knowledge & problem-solving skills along with time management. NEET Biology Neurons Nerve Impulse Multiple Choice Questions make you feel confident in answering the question in the exam & increases your scores to high.

MCQs on Neurons Nerve Impulse

1. The Myelin sheath is derived from the
(a) Microglia
(b) Neuroglial cells
(c) Schwann cells
(d) Nerve cells

Answer

Answer: (c)


2. Nissl’s granules are found in
(a) Nerve cells
(b) WBC
(c) RBC
(d) Platelets

Answer

Answer: (a)


3. Which of these is a disease of the myelin sheath?
(a) Polio
(b) Leprosy
(c) Multiple sclerosis
(d) Alzheimer

Answer

Answer: (c)


4. This neurotransmitter is not a biogenic amine
(a) Serotonin
(b) Dopamine
(c) Norepinephrine
(d) Neuropeptides

Answer

Answer: (d)


5. A nerve impulse jumps from one __________ to another during saltatory conduction
(a) Synapse
(b) Axon
(c) Node of Ranvier
(d) Myelin sheath

Answer

Answer: (c)


6. ________ are the neurons carrying impulses away from the central nervous system
(a) Efferent nerves
(b) Afferent nerves
(c) Extensors
(d) Sensory nerves

Answer

Answer: (a)


7. This amongst the following is found in muscle cells and nerves
(a) membrane potential
(b) potassium equilibrium potential
(c) resting potential
(d) sodium equilibrium potential

Answer

Answer: (c)


8. Which of these has the highest permeability in a resting nerve cell?
(a) Cl-
(b) Na+
(c) K+
(d) I-

Answer

Answer: (c)


9. For the first time, research on nerve cells was carried out on this organism
(a) Grasshopper
(b) Drosophila melanogaster
(c) Octopus
(d) Giant squid

Answer

Answer: (d)


10. Neurotransmitters can inhibit or excite neurons. _________ for example, is inhibitory whereas __________ is excitatory
(a) GABA; glutamate
(b) Glutamate; GABA
(c) Serotonin; dopamine
(d) None of these

Answer

Answer: (a)