CLASS VII HOME WORK
ODISHA ADARSHA VIDYALAYA SANGATHAN BHUBANESWAR
QUESTION BANK: GEOGRAPHY-VII
O D I S H A A D A R S H A V I D Y A L A Y A P A L A S A G A D I A
CHAPTER-1: ENVIRONMENT
A. Multiple Choice Questions (MCQs)
1. How much part of the earth is covered with water?
a) 61% b) 66% c) 71% d) 81%
2. Which is the domain of living things?
a) Lithosphere b) Biosphere c) Hydrosphere d) Atmosphere
3. The average thickness of lithosphere is-
a) 100 km b) 500km c) 1000 km d) 2000 km
4. What is the mean temperature of earth?
a) 10˚ b) 15˚ c) 20˚ d) 25˚
5. Which of these is not a part of physical environment?
a) Land b) water c) air d) agriculture
6. Which of these is a part of the biological environment?
a) Plants b) air c) water d) mountains
7. Natural environment does not refer to-
a) Biotic conditions c) Abiotic conditions
b) Physical conditions d) Human conditions
8. Which of these is refered to as a solid layer of the earth?
a) Lithosphere b) Hydrosphere c) Atmosphere d) Biosphere
9. Which layer protects us from harmful rays of the sun?
a) Lithosphere b) Hydrosphere c) Atmosphere d) Biosphere
B. Very Short Answer Type Questions
1. Name of the three realms of the earth?
2. What are the biotic and abiotic components of the natural environment?
3. State the importance of atmosphere of the living world.
4. What does the human environment reveal?
5. List various comforts which the lithosphere provides to us?
6. Give some examples of natural ecosystem on the earth.
7. What is biosphere?
8. What is the utility of the lithosphere?
9. State two functions of atmosphere?
10. What is the meaning of environment?
11. Suggest three different relief features of the lithosphere?
12. What is physical-natural environment?
13. Define atmosphere.
14. Define ecosystem.
C. Short Answer Type Questions
1. Why is it necessary to study the natural environment?
2. Why must we respect nature and not meddle with it?
3. How does the natural environment vary from place to place?
4. Explain the relationship among the components of the environment.
5. Differentiate between Natural and Human environment?
6. Why should we protect our environment?
7. The earth is a unique planet. Give reasons.
8. State three characteristics of lithosphere.
9. State three advantages of lithosphere.
10. Give some examples of ecosystem?
11. State two functions of atmosphere?
12. The environment is dynamic. Explain.
13. Man is an important part of biosphere. Explain.
D. Long Answer Type Questions
1. How do plants and animals depend upon each other? Explain.
2. How do human beings become an important component of the environment?
3. Describe the major components of the Natural Environment.
E. Hots Corner
1. How do human beings modify the natural environment?
2. How does the atmosphere act as a blanket for our Earth?
3. What type of life the early human led?
4. How did man try to change environment?
F. Value Based Questions
1. What can you do to preserve biodiversity?
2. Why is biosphere important?
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CLASS IX HOME WORK
Date- 20.05.2025
Calculate the location of a place where the local time is noon when it is 07:30 PM at Greenwich.
Answer:
- The local time of the place is 12:00 pm.
- The GMT is 7:30 pm.
- The difference in time is 7:30 hrs or 450 min.
- The difference in longitudes will be 112.5° (450/4).
- Since the time at given place is less than GMT, the place is to the west of GMT.
- So, the longitude of a place where the local time is noon is 112.5° W.
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