why is there life on earth class 6
Where is it easy to grow crops, build a house and a road?
For a better experience, please enable JavaScript in your browser before proceeding. Hi friends, I am sharing the Notes, Guide, Chapter Summary and NCERT solutions for the Chapter-6 Life on Earth of Geography subject for Class 11 students of CBSE and state board.This PDF contains quick learning notes, summary and solutions for speedy revision of the NCERT CBSE course of Chapter-6 Life on Earth of Geography subject as per Class 11 syllabus. (a) Asia The two processes are: No other planet has temperatures like Earth that are not too hot and not … (b) The atmosphere (b) Carbon dioxide ), Law (LLB) Entrance Papers, Solutions, Cutoffs (LSAT, CLAT, SSLC, ILSAT, ILICAT etc. Answer:
There are several species of organism in the biosphere. The highest point on Continents is 8848 metres in the form of Mount Everest in Nepal while the deepest depth is 11022 metres in the form of Mariana Deep (Mariana Trench) in the Pacific Ocean. (d) All of these Answer: Describe the density of the atmosphere. (d) none of these Answer: (d) All of these (c) River Mariana Trench, the deepest part of the earth lies under the Pacific Ocean.
Narrow zone, Question 4. The Atlantic ocean is the busiest ocean from the point of view of commerce.
What are the life sustaining elements present on the earth? Question 2. The atmosphere extends upto a height of about 1,600 kilometres. Furthermore, life exists in the most extreme places on Earth. Answer: Huge Primary Geography Knowledge Organisers Bundle. What negative impacts on nature are caused by the felling of trees? Climbers experience problems in breathing due to decrease in density. They are considerably worn down by the processes of erosion. Atmosphere is composed mainly of nitrogen and oxygen. Give a brief description of each of them. Answer: The three chief movements of ocean water are: Question 1. registered in England (Company No 02017289) with its registered office at 26 Red Lion The continent is bounded on all sides by oceans and seas.
), Government Recruitment Exams Papers, Solutions, Cutoffs (Bank PO, Clerk, RRB, SSC CGL, SSC CPO, ISRO, BSNL JTO etc. Where are glaciers found? (b) Kenya They are the Pacific Ocean in the West, The Atlantic Ocean in the East and the Arctic Ocean in the North. (b) In mountains Too salty, Question 10. (d) Antarctica Level of seawater remains the same everywhere. It has the right climate, water is abundant, its air is breathable, it receives the perfect amount of energy from the Sun and is able to protect itself from the Sun's harmful rays and particles because of its atmosphere and magnetic field.
(b) In wells • Answer: Height varies from a few hundred metres to several thousand metres. It is the narrow zone of contact of land, water and air where all forms of life are found. graben, Question 4. (d) None of these (a) Africa The earth surrounded by a layer of gases is called People live on different landforms in different ways: We have special duty to save landforms for future generations. You open a Boom Learningâ account to play them (to protect the children). They are in ascending order from the earth’s surface: The ozone layer crucial to life on the earth is located in the stratosphere.
Answer: (c) N2 Answer: The wearing away of the earth’s surface is called The latter theory was known as the theory of spontaneous generation, which was discarded later. (c) The hydrosphere Composition of the Atmosphere. Describe three types of mountains.
Enumerate three movements of the ocean water. Define (i) Mountains (ii) Glaciers. erosion, Question 2. There are seven major continents, namely: Plain, Question 9. World’s largest river, Amazon flows through this continent. (b) CO2 Antarctica is completely in the Southern Hemisphere. The surface of the earth is a complex interface, because three main components of the environment meet, overlap and interact on it. Which area is the most useful for human habitation? Question 1. Free accounts use purchased Boom Cards with Fast Play pins. They vary in size from microbes and bacteria to huge mammals.
(b) Africa Describe four major oceans of the world. Explain the layers of the Atmosphere. Question 1. The earth is called the blue planet because 71% of the earth is covered with water and 29% with land. In Greek Litho means stone or rock. The largest hot desert of the world, the Sahara desert is situated in Africa. The continents have an average depth of 3800 metres in Oceans. (d) None of these (b) plateau
What is air pressure? Question 2. (a) The Atmosphere All of these, Question 6. Life on Earth can exist in the harshest of circumstances. (c) present generation Landforms and People: They canât be printed. Question 5. Felling of trees also reduces the quantity of oxygen we get from them. (a) India When your trial ends, you can renew or move to a free account. Answer: (c) In plateaus This leads to increase of silt in rivers that results ultimately into floods.
Usefulness of Plateaus: Question 4. Answer: Question 3. Define plains. Biosphere has been derived from the Greek word ‘Bio’. Other examples: East African Plateau (in Kenya, Tanzania and Uganda). Watch Queue Queue (a) The Ganga Certain experts suggested that life came from outer space as spores while another group explained that life came from a non-cellular component such as decaying matters like mud.
(a) Too sour Also, life exists in the extremely cold Antarctica continent.
How are plateaus useful to us? Increase in industries has led to increase in pollution. Answer: Which of the following is the smallest continent? The wider part of Africa lies in the Northern hemisphere.
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