-
Q1 (i) What is an ecosystem?
(ii) What do you mean by natural environment?
(iii) Which are the major components of the environment?
(iv) Give four examples of human made environment.
(v) What is lithosphere?
(vi) Which are the two major components of biotic environment?
(vii) What is biosphere?Ans: (i) Ecosystem is the system which is formed by the interaction of all living things with one another and with the physical and chemical factors of the environment where they live and is linked by transfer of energy and material.
(ii) By natural environment we mean the surrounding created by the nature. It comprises of the objects such as- mountains, plateaus, plains, valleys, forests, land, air, river, ocean, water and all living and non living things etc.
(iii) Major components of the environment includes- Natural components like land (lithosphere), water (hydrosphere), air (atmosphere), living things (organism). - Human made components like buildings, parks, bridge, road industries etc. Human like, organisms, individuals, family, community, religion, politics, education etc.
(iv) Examples of human made environment are: buildings, parks, bridges, roads, industries etc.
(v) Lithosphere is the hard top layer of the earth or crust that is consisting of rocks and minerals extending both over the continents and ocean basins.
(vi) The two basic components of biotic environment are plants and animals.
(vii) Biosphere: plants and animals found in the narrow strip at the junction of the lithosphere, atmosphere and hydrosphere together theh formed an biosphere.
Q2 (i) Which is not a natural ecosystem?
(a) Desert (b) Aquarium (c) Forest
(ii) Which is not a component of human environment?
(a) Land (b) Religion (c) Community
(iii) Which is a human made environment?
(a) Mountain (b) Sea (c) Road
(iv) Which is a threat to environment?
(a) Growing plant(b) Growing population (c) Growing cropsAns: (i) (b) aquarium
(ii) (a) land
(iii) (c) road
(iv) (b) growing populationQ3 (i) Biosphere (a) blanket of air which surrounds the earth
(ii) Atmosphere (b) domain of water
(iii) Hydrosphere (c) gravitational force of the earth
(iv) Environment (d) our surroundings(e) narrow zone where land water and air interact
(f) relation between the organisms and their surroundingsAns: (i) Biosphere (e) narrow zone where land, water and air interact
(ii) Atmosphere (a) Blanket of air which surrounds the earth
(iii) Hydrosphere (b) Domain of water
(iv) Environment (d)Our surroundingsQ4 (i) Man modifies his environment
(ii) Plants and animals depend on each other
Ans: (i) it is true that man modifies his environment it is because-
- He uses water - Deforestation is done by which he clears land for agriculture, industries and habitation.
- He uses air.
- Numerous activities take place to make the life comfortable.(ii) The interdependence of plants and animal can be illustrated by the following points:
- Plants provide food to animals.
- Forests provide shelter to wildlife.
- Wildlife adds beauty to the forests.
- Animal dung provides manure for the growth of plants.
- The decay of dead animals provides nutrition to the soil which in turn helps in growing the plants and trees.Q5 Imagine an ideal environment where you would love to live. Draw the picture of your ideal environment.
Ans: Draw a picture of good environment in which you like to live.
Environment Question Answers: NCERT Class 7 Social Science - Our Environment (Geography)
Welcome to the Chapter 1 - Environment, Class 7 Social Science - Our Environment (Geography) - NCERT Solutions page. Here, we provide detailed question answers for Chapter 1 - Environment.The page is designed to help students gain a thorough understanding of the concepts related to natural resources, their classification, and sustainable development.
Our solutions explain each answer in a simple and comprehensive way, making it easier for students to grasp key topics and excel in their exams. By going through these Environment question answers, you can strengthen your foundation and improve your performance in Class 7 Social Science - Our Environment (Geography). Whether you're revising or preparing for tests, this chapter-wise guide will serve as an invaluable resource.
Exercise 1 ( Page No. : 6 )
Key Features of NCERT Class 7 Social Science - Our Environment (Geography) Chapter 'Environment' question answers :
- All chapter question answers with detailed explanations.
- Simple language for easy comprehension.
- Aligned with the latest NCERT guidelines.
- Perfect for exam preparation and revision.
Popular Questions of Class 7 Social Science - Our Environment (Geography)
- Q:-
Imagine an ideal environment where you would love to live. Draw the picture of your ideal environment.
- Q:-
(i) There is scanty vegetation in the deserts.
(ii) People of the Sahara desert wear heavy robes. - Q:-
Observe the photographs given below. These are various features made by a river. Identify them and also tell whether they are erosional or depositional or landforms formed by both.
- Q:-
(i) Wet clothes take longer time to dry on a humid day?
(ii) Amount of insolation decreases from equator towards poles? - Q:-
(i) Ocean water is salty.
(ii) The quality of water is deterioting. - Q:-
(i) Sahara is located in which part of Africa
(a) eastern (b) northern (c) western
(ii) Sahara is what type of desert
(a) cold (b) hot (c) mild
(iii) The Ladakh desert is mainly inhabited by
(a) Christians and Muslims
(b) Buddhists and Muslims
(c) Christians and Buddhists
(iv) Deserts are characterised by
(a) scanty vegetation
(b) heavy precipitation
(c) low evaporation(v) Hemis in the Ladakh is a famous
(a) temple (b) church (c) monastery
(vi) Egypt is famous for growing
(a) wheat (b) maize (c) cotton - Q:-
(i) Name the continent in which the Amazon Basin is located.
(ii) What are the crops grown by the people of the Amazon Basin.
(iii) Name the birds that you are likely to find in the rainforests of the Amazon.
(iv) What are the major cities located on the River Ganga.
(v) Where is the one-horned rhinoceros found? - Q:-
(i) Which is not a natural ecosystem?
(a) Desert (b) Aquarium (c) Forest
(ii) Which is not a component of human environment?
(a) Land (b) Religion (c) Community
(iii) Which is a human made environment?
(a) Mountain (b) Sea (c) Road
(iv) Which is a threat to environment?
(a) Growing plant(b) Growing population (c) Growing crops - Q:-
(i) Which of the following gases protects us from harmful sun vays?
(a) Carbon dioxide (b) Nitrogen (c) Ozone(ii) The most important layer of the atmosphere is
(a) Troposphere (b) Thermosphere (c) Mesosphere(iii) Which of the following layers of the atmosphere is free from clouds?
(a) Troposphere (b) Stratosphere (c) Mesosphere(iv) As we go up the layers of the atmosphere, the pressure
(a) Increases (b) Decreases (c) Remains the same(v) When precipitation comes down to the earth in the liquid form, it is called
(a) Cloud (b) Rain (c) Snow - Q:-
(i) Today’s world is shrinking.
Recently Viewed Questions of Class 7 Social Science - Our Environment (Geography)
- Q:-
(i) We cannot go to the centre of the earth.
(ii) Sedimentary rocks are formed from sediments.
(iii) Limestone is changed into marble. - Q:-
(i) The name of one river is hidden in each of the sentences below. Spot it. Example:Mandira, Vijayalakshmi and Surinder are my best friends Answer: Ravi
(a) The snake charmer’s bustee, stables where horses are housed, and the piles of wood, all caught fire accidentally. (Hint: Another name for River Brahmputra)
(b) The conference manager put pad, material for reading and a pencil for each participant (Hint: A distributary on the Ganga-Brahmputra delta)
(c) Either jealousy or anger cause a person’s fall (Hint: Name of a juicy fruit!)
(d) Bhavani germinated the seeds in a pot (Hint: Look for her in West Africa)
(e) “I am a zonal champion now” declared the excited athlete. (Hint: The river that has the biggest basin in the world)
(f) The tiffin box rolled down and all the food fell in dusty potholes. (Hint: Rises in India and journeys through Pakistan)
(g) Malini leaned against the pole when she felt that she was going to faint. (Hint: Her delta in Egypt is famous)
(h) Samantha mesmerised everybody with her magic tricks. (Hint: London is situated on her estuary)
(i) “In this neighbourhood, please don’t yell! Owners of these houses like to have peace”. Warned my father when we moved into our new flat”. (Hint: colour!)
(j) ‘Write the following words, Marc!’ “On”, “go”, “in”........ said the teacher to the little boy in KG Class. (Hint: Rhymes with ‘bongo’) Now make some more on your own and ask your classmates to spot the hidden name. You can do this with any name: that of a lake, mountains, trees, fruits, school items etc. - Q:-
(i) Which of the following gases protects us from harmful sun vays?
(a) Carbon dioxide (b) Nitrogen (c) Ozone(ii) The most important layer of the atmosphere is
(a) Troposphere (b) Thermosphere (c) Mesosphere(iii) Which of the following layers of the atmosphere is free from clouds?
(a) Troposphere (b) Stratosphere (c) Mesosphere(iv) As we go up the layers of the atmosphere, the pressure
(a) Increases (b) Decreases (c) Remains the same(v) When precipitation comes down to the earth in the liquid form, it is called
(a) Cloud (b) Rain (c) Snow - Q:-
For fun.
(i) What are the minerals most commonly used in the following objects?
(ii) Identify some more objects made up of different minerals.
- Q:-
(i) What is an ecosystem?
(ii) What do you mean by natural environment?
(iii) Which are the major components of the environment?
(iv) Give four examples of human made environment.
(v) What is lithosphere?
(vi) Which are the two major components of biotic environment?
(vii) What is biosphere? - Q:-
(i) The process by which water continually changes its form and circulates between oceans, atmosphere and land
(a) Water cycle (b) Tides (c) Ocean currents
(ii) Generally the warm ocean currents originate near
(a) Poles (b) Equator (c) None of these
(iii) The rythmic rise and fall of ocean water twice in a day is called
(a) Tide (b) Ocean current (c) Wave - Q:-
(i) What are the four means of transport?
(ii) What do you understand by the term ‘settlement’?
(iii) Which are the activities practised by the rural people?
(iv) Mention any two merits of railways.
(v) What do you understand by communication?
(vi) What is mass media? - Q:-
(i) There is scanty vegetation in the deserts.
(ii) People of the Sahara desert wear heavy robes. - Q:-
(i) Toucans are a type of
(a) birds (b) animals (c) crops
(ii) Manioc is the staple food of
(a) Ganga Basin (b) Africa (c) Amazon
(iii) Kolkata is located on the river
(a) Orange (b) Hooghly (c) Bhagirathi
(iv) Deodars and firs are a type of
(a) Coniferous trees (b) Deciduous trees (c) shrubs
(v) Bengal tiger is found in
(a) mountains (b) delta area (c) Amazon - Q:-
Observe the photographs given below. These are various features made by a river. Identify them and also tell whether they are erosional or depositional or landforms formed by both.
- All Chapters Of Class 7 Social Science - Our Environment (Geography)
- All Subjects Of Class 7