Chapter 2
Environment and Environmental Problems
( āĻĒā§°িā§ąেāĻļ āĻā§°ু āĻĒā§°িā§ąেāĻļā§° āϏāĻŽāϏ্āϝা )
Exercise
( āĻŦ্āϝাā§াāĻŽ )
1. Write in your own words the meaning of environment.
ā§§/ āύিāĻā§° āĻļāĻŦ্āĻĻā§°ে āĻĒā§°িā§ąেāĻļā§° āĻ ā§°্āĻĨ āϞিāĻা।
Ans. 2.Mention some of the biotic and abiotic elements of environment.
⧍.āĻĒā§°িā§ąেāĻļā§° āĻিāĻুāĻŽাāύ āĻৈā§ąিāĻ āĻā§°ু āĻ āĻৈā§ąিāĻ āĻŽৌāϞ⧰ āĻāĻĨা āĻāϞ্āϞেāĻ āĻā§°া।
Ans.
3. Write the meaning of lithosphere.
ā§Š) āĻļিāϞাāĻŽāĻŖ্āĻĄāϞ⧰ āĻ ā§°্āĻĨ āϞিāĻা।
Ans. 4.What are the features included in the hydrosphere?
ā§Ē.āĻšাāĻāĻĄ্ā§°’āϏ্āĻĢিāϝ়াā§°āϤ āĻি āĻি āĻŦৈāĻļিāώ্āĻ্āϝ āĻ āύ্āϤ⧰্āĻুāĻ্āϤ āĻā§°া āĻšৈāĻে?
Ans. 5. Write about the composition of the atmosphere.
ā§Ģ) āĻŦাāϝ়ুāĻŽāĻŖ্āĻĄāϞ⧰ āĻāĻ āύ⧰ āĻŦিāώāϝ়ে āϞিāĻা।
Ans. 6. Give an outline of the extent of the biosphere.
ā§Ŧ) āĻৈā§ąāĻŽāĻŖ্āĻĄāϞ⧰ āĻĒā§°িāϏ⧰⧰ ā§°ূāĻĒā§°েāĻা āĻĻিāϝ়া।
Ans. 7. Discuss briefly the relation among the four major components of environment.
ā§) āĻĒā§°িā§ąেāĻļā§° āĻাā§°িāĻা āĻĒ্ā§°āϧাāύ āĻāĻĒাāĻĻাāύ⧰ āĻŽাāĻā§° āϏāĻŽ্āĻĒā§°্āĻā§° āĻŦিāώāϝ়ে āĻāĻŽুāĻৈ āĻāϞোāĻāύা āĻā§°া।
Ans. 8. Mention the major causes of environmental change.
ā§Ž) āĻĒā§°িā§ąেāĻļ āĻĒā§°িā§ąā§°্āϤāύ⧰ āĻĒ্ā§°āϧাāύ āĻাā§°āĻŖāϏāĻŽূāĻš āĻāϞ্āϞেāĻ āĻā§°া।
Ans. 9. Explain the meaning of environmental problem.
⧝) āĻĒā§°িā§ąেāĻļ āϏāĻŽāϏ্āϝাā§° āĻ ā§°্āĻĨ āĻŦুāĻাāĻ āĻĻিāϝ়া।
Ans. 10. Write geographical divisions of the environmental problems.
ā§§ā§Ļ) āĻĒā§°িā§ąেāĻļ āϏāĻŽāϏ্āϝাā§° āĻৌāĻোāϞিāĻ āĻŦিāĻাāĻāύ āϞিāĻা।
Ans. 11. What is a local environmental problem? Give examples.
ā§§ā§§) āϏ্āĻĨাāύীāϝ় āĻĒā§°িā§ąেāĻļā§° āϏāĻŽāϏ্āϝা āĻি? āĻāĻĻাāĻšā§°āĻŖ āĻĻিāϝ়āĻ।
Ans. 12. Give two examples of regional environmental problem.
⧧⧍) āĻāĻ্āĻāϞিāĻ āĻĒā§°িā§ąেāĻļ āϏāĻŽāϏ্āϝাā§° āĻĻুāĻা āĻāĻĻাāĻšā§°āĻŖ āĻĻিāϝ়া।
Ans. 13. Which problems are considered as global environmental problem?
ā§§ā§Š) āĻোāύāĻŦোā§° āϏāĻŽāϏ্āϝাāĻ āĻŦিāĻļ্āĻŦ āĻĒā§°িā§ąেāĻļ āϏāĻŽāϏ্āϝা āĻšিāĻাāĻĒে āĻāĻŖ্āϝ āĻā§°া āĻšāϝ়?
Ans. 14. Mention the major environmental problems of the world.
ā§§ā§Ē) āĻĒৃāĻĨিā§ąীā§° āĻĒ্ā§°āϧাāύ āĻĒā§°িā§ąেāĻļ āϏāĻŽāϏ্āϝাā§° āĻāĻĨা āĻāϞ্āϞেāĻ āĻā§°া।
Ans. 15. Give the meaning of the term pollution.
āĻ্āϝাāĻ āĻāϰ āϏাāĻĨে āϏāĻŽ্āĻĒāϰ্āĻিāϤ āϤাāϰিāĻ āĻāĻĒāϞোāĻĄ āĻā§°ুāύ
Ans. 16. What is water pollution? How does it occur?
ā§§ā§Ŧ) āĻĒাāύী āĻĒ্ā§°āĻĻূāώāĻŖ āĻি? āĻেāύেāĻৈ āĻšāϝ়?
Ans. 17. Write a short note on land pollution.
ā§§ā§) āĻূāĻŽি āĻĒ্ā§°āĻĻূāώāĻŖā§° āĻāĻĒā§°āϤ āĻāĻা āĻāĻŽু āĻোāĻা āϞিāĻা।
Ans. 18. Write how air is polluted.
ā§§ā§Ž) āĻŦাāϝ়ু āĻেāύেāĻৈ āĻĒ্ā§°āĻĻূāώিāϤ āĻšāϝ় āϞিāĻা।
Ans. 19. What is a desert? Give the definition of desertification.
⧧⧝) āĻŽā§°ুāĻূāĻŽি āĻি? āĻŽā§°ুāĻূāĻŽিā§° āϏংāĻ্āĻা āĻĻিāϝ়া।
Ans. 20. Mention the causes of desertification.
⧍ā§Ļ) āĻŽā§°ুāĻূāĻŽিā§° āϏৃāώ্āĻিā§° āĻাā§°āĻŖāϏāĻŽূāĻš āĻāϞ্āϞেāĻ āĻā§°া।
Ans. 21. Is it possible to control desertification?
⧍⧧) āĻŽā§°ুāĻূāĻŽিāĻā§°āĻŖ āύিāϝ়āύ্āϤ্ā§°āĻŖ āĻā§°া āϏāĻŽ্āĻā§ąāύে?
Ans. 22. What is global warming? Mention its causes.
⧍⧍) āĻোāϞāĻীāϝ় āĻāώ্āĻŖāϤা āĻŦৃāĻĻ্āϧি āĻি? āĻāϝ়াā§° āĻাā§°āĻŖāϏāĻŽূāĻš āĻāϞ্āϞেāĻ āĻā§°া।
Ans.
23. What are the probable consequences of global warming?
ā§¨ā§Š) āĻোāϞāĻীāϝ় āĻāώ্āĻŖāϤা āĻŦৃāĻĻ্āϧিā§° āϏāĻŽ্āĻাā§ą্āϝ āĻĒā§°িāĻŖāϤি āĻি āĻি?
Ans. 24. Write how to control global warming.
⧍ā§Ē) āĻোāϞāĻীāϝ় āĻāώ্āĻŖāϤা āĻŦৃāĻĻ্āϧি āĻেāύেāĻৈ āύিāϝ়āύ্āϤ্ā§°āĻŖ āĻā§°িāĻŦ āĻĒাā§°ি āϞিāĻা।
Ans.
25. Is there any environmental problem in your own locality? If yes, then explain their causes and indicate some measures for their solution.
⧍ā§Ģ) āĻāĻĒোāύাā§° āύিāĻā§° āϏ্āĻĨাāύীāϝ় āĻ āĻ্āĻāϞāϤ āĻোāύো āĻĒā§°িā§ąেāĻļāĻāύিāϤ āϏāĻŽāϏ্āϝা āĻāĻেāύে? āϝāĻĻি āĻšāϝ়, āϤেāύ্āϤে āĻāϝ়াā§° āĻাā§°āĻŖāϏāĻŽূāĻš āĻŦ্āϝাāĻ্āϝা āĻā§°āĻ āĻā§°ু āĻāϝ়াā§° āϏāĻŽাāϧাāύ⧰ āĻŦাāĻŦে āĻিāĻুāĻŽাāύ āĻŦ্āĻ¯ā§ąāϏ্āĻĨাā§° āĻংāĻিāϤ āĻĻিāϝ়āĻ।
Ans.