Chapter 14
āĻ āϧ্āϝাāϝ় ā§§ā§Ē
Natural Resources
āĻĒ্ā§°াāĻৃāϤিāĻ āĻāϤ্āϏāĻŦোā§°
Page-193
(āĻĒৃāώ্āĻ া-ā§§ā§¯ā§Š)
Questions-
(āĻĒ্ā§°āĻļ্āύ-)
1. How is our atmosphere different from the atmosphere on venus and Mars?
(āĻļুāĻ্ā§° āĻā§°ু āĻŽংāĻāϞ āĻ্ā§°āĻšā§° āĻŦাāϝ়ুāĻŽāĻŖ্āĻĄāϞ⧰ āĻĒā§°া āĻāĻŽাā§° āĻŦাāϝ়ুāĻŽāĻŖ্āĻĄāϞ āĻেāύেāĻৈ āĻĒৃāĻĨāĻ?)
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2. How does the atmosphere act as a blanket?
( āĻŦাāϝ়ুāĻŽāĻŖ্āĻĄāϞে āĻেāύেāĻৈ āĻāĻŽ্āĻŦāϞ⧰ āĻĻā§°ে āĻাāĻŽ āĻā§°ে?)
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3. What causes winds?
(āĻŦāϤাāĻšā§° āĻাā§°āĻŖ āĻি?)
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4/ How are clouds formed?
( āĻĄাā§ąā§° āĻেāύেāĻৈ āĻāĻ āύ āĻšāϝ়?)
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5. List any three human activities that you think would lead to air pollution.
( āĻāĻĒুāύি āĻŦাāϝ়ু āĻĒ্ā§°āĻĻূāώāĻŖā§° āϏৃāώ্āĻি āĻā§°িāĻŦ āĻŦুāϞি āĻāĻŦা āϝিāĻোāύো āϤিāύিāĻা āĻŽাāĻ¨ā§ą āĻাā§°্āϝ্āϝāĻāϞাāĻĒā§° āϤাāϞিāĻা āĻĒ্ā§°āϏ্āϤুāϤ āĻā§°āĻ।)
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Page-194
(āĻĒৃāώ্āĻ া-⧧⧝ā§Ē)
Questions-
(āĻĒ্ā§°āĻļ্āύ-)
1. Why do organisms need water?
( āĻীā§ąāĻ āĻĒাāύীā§° āĻĒ্ā§°āϝ়োāĻāύ āĻিāϝ়?)
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2. What is the major source of fresh water in the city/town/village where you live?
( āĻāĻĒুāύি āĻŦাāϏ āĻā§°া āĻāĻšā§°/āύāĻā§°/āĻাāĻঁāĻāύ⧰ āĻŽিāĻ া āĻĒাāύীā§° āĻĒ্ā§°āϧাāύ āĻā§āϏ āĻি?)
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3. Do you know of any activity which may be polluting this water source?
( āĻāĻĒুāύি āĻāύেāĻুā§ąা āĻোāύো āĻাā§°্āϝ্āϝāĻāϞাāĻĒ āĻাāύেāύে āϝিāϝ়ে āĻāĻ āĻĒাāύীā§° āĻā§āϏ āĻĒ্ā§°āĻĻূāώিāϤ āĻā§°িāĻŦ āĻĒাā§°ে?)
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Page-196
(āĻĒৃāώ্āĻ া-⧧⧝ā§Ŧ)
Questions-
(āĻĒ্ā§°āĻļ্āύ-)
1. How is soil formed?
( āĻŽাāĻি āĻেāύেāĻৈ āĻāĻ āύ āĻšāϝ় ?)
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2. What is soil erosion?
( āĻŽাāĻি āĻāĻšāύীāϝ়া āĻি?)
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3. What are the methods of preventing or reducing soil erosion?
( āĻŽাāĻিā§° āĻāĻšāύীāϝ়া āĻĒ্ā§°āϤিā§°োāϧ āĻŦা āĻš্ā§°াāϏ āĻā§°াā§° āĻāĻĒাāϝ় āĻি āĻি?)
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Page-201
(āĻĒৃāώ্āĻ া-⧍ā§Ļā§§)
Questions-
(āĻĒ্ā§°āĻļ্āύ-)
1. What are the different states in which water is found during the water cycle?
(āĻĒাāύী āĻāĻ্ā§°ā§° āϏāĻŽāϝ়āϤ āĻĒাāύী āĻĒোā§ąা āĻŦিāĻিāύ্āύ āĻ ā§ąāϏ্āĻĨা āĻি āĻি?)
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2. Name two biologically important compounds that contain both oxygen and nitrogen.
(āĻৈā§ąিāĻāĻাā§ąে āĻুā§°ুāϤ্āĻŦāĻĒূā§°্āĻŖ āĻĻুāĻা āϝৌāĻ āĻāϞ্āϞেāĻ āĻā§°া āϝ’āϤ āĻ āĻ্āϏিāĻেāύ āĻā§°ু āύাāĻāĻ্ā§°’āĻেāύ āĻĻুāϝ়োāĻা āĻĨাāĻে।)
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3. List any three human activities which would lead to an increase in the carbon dioxide content of air.
( āĻŽাāύুāĻšā§° āϝিāĻোāύো āϤিāύিāĻা āĻাā§°্āϝ্āϝāĻāϞাāĻĒā§° āϤাāϞিāĻা āĻĒ্ā§°āϏ্āϤুāϤ āĻā§°āĻ āϝিāϝ়ে āĻŦাāϝ়ুāϤ āĻাā§°্āĻŦāύ āĻĄাāĻ āĻ āĻ্āϏাāĻāĻĄā§° āĻĒā§°িāĻŽাāĻŖ āĻŦৃāĻĻ্āϧি āĻā§°িāĻŦ।)
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4. What is the greenhouse effect?
(āϏেāĻāĻ āĻৃāĻš āĻĒ্ā§°āĻাā§ą āĻি?)
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5. What are the two forms of oxygen found in the atmosphere?
( āĻŦাāϝ়ুāĻŽāĻŖ্āĻĄāϞāϤ āĻĒোā§ąা āĻ āĻ্āϏিāĻেāύ⧰ āĻĻুāĻা āĻĒ্ā§°āĻাā§° āĻি āĻি?)
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Exercises-
(āĻŦ্āϝাāϝ়াāĻŽ-)
1. Why is the atmosphere essential for life?
( āĻীā§ąāύ⧰ āĻŦাāĻŦে āĻĒā§°িā§ąেāĻļāĻো āĻিāϝ় āĻ āĻĒā§°িāĻšাā§°্āϝ?)
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2. Why is water essential for life?
( āĻীā§ąāύ⧰ āĻŦাāĻŦে āĻĒাāύী āĻিāϝ় āĻ āĻĒā§°িāĻšাā§°্āϝ?)
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3. How are living organisms dependent on the soil? Are organisms that live in water totally independent of soil as a resource?
( āĻীā§ąিāϤ āĻীā§ąāĻŦোā§° āĻŽাāĻিā§° āĻāĻĒā§°āϤ āĻেāύেāĻৈ āύিā§°্āĻā§°āĻļীāϞ? āĻĒাāύীāϤ āĻŦাāϏ āĻā§°া āĻীā§ąāĻŦোā§° āϏāĻŽ্āĻĒāĻĻ āĻšিāĻাāĻĒে āĻŽাāĻিā§° āĻĒā§°া āϏāĻŽ্āĻĒূā§°্āĻŖ āϏ্āĻŦাāϧীāύ āύেāĻি?)
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4. You have seen weather reports on television and in newspapers. How do you think we are able to predict the weather?
( āĻāĻĒুāύি āĻেāϞিāĻিāĻāύāϤ āĻā§°ু āĻŦাāϤ⧰ি āĻাāĻāϤāϤ āĻŦāϤ⧰⧰ āĻŦাāϤ⧰ি āĻĻেāĻিāĻে। āĻāĻĒুāύি āĻেāύেāĻৈ āĻাāĻŦে āĻāĻŽি āĻŦāϤ⧰⧰ āĻŦিāώāϝ়ে āĻā§ąিāώ্āϝāĻĻ্āĻŦাāĻŖী āĻā§°িāĻŦāϞৈ āϏāĻ্āώāĻŽ āĻšৈāĻো?)
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5. We know that many human activities lead to increasing levels of pollution of the air, water-bodies and soil. Do you think that isolating these activities to specific and limited areas would help in reducing pollution?
( āĻāĻŽি āĻাāύো āϝে āĻŽাāύুāĻšā§° āĻŦāĻšুāϤো āĻাā§°্āϝ্āϝāĻāϞাāĻĒā§° āĻĢāϞāϤ āĻŦাāϝ়ু, āĻāϞ-āĻĒাāύী āĻā§°ু āĻŽাāĻিā§° āĻĒ্ā§°āĻĻূāώāĻŖā§° āĻŽাāϤ্ā§°া āĻŦৃāĻĻ্āϧি āĻĒাāϝ়। āĻāĻ āĻাā§°্āϝ্āϝāĻāϞাāĻĒāϏāĻŽূāĻšāĻ āύিā§°্āĻĻিāώ্āĻ āĻā§°ু āϏীāĻŽিāϤ āĻ āĻ্āĻāϞāϞৈ āĻĒৃāĻĨāĻ āĻā§°িāϞে āĻĒ্ā§°āĻĻূāώāĻŖ āĻš্ā§°াāϏ āĻā§°াāϤ āϏāĻšাāϝ়āĻ āĻš’āĻŦ āĻŦুāϞি āĻāĻĒুāύি āĻাāĻŦেāύে?)
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6. Write a note on how forests influence the quality of our air, soil and water resources.
( āĻŦāύাāĻ্āĻāϞে āĻāĻŽাā§° āĻŦাāϝ়ু, āĻŽাāĻি āĻā§°ু āĻāϞāϏāĻŽ্āĻĒāĻĻā§° āĻŽাāύāĻĻāĻŖ্āĻĄāϤ āĻেāύেāĻĻā§°ে āĻĒ্ā§°āĻাā§ą āĻĒেāϞাāϝ় āϤাā§° āĻāĻĒā§°āϤ āĻāĻা āĻোāĻা āϞিāĻা।)
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Question Type By - Punya Hazarika
Post ID: DABP001891