Top soil is the best for the vegetation. The main components of this productive top layer are:
(a) Humus and living organisms only
(b) Humus and soil particles only
(c) Humus, living organisms and plants
(d) Humus, living organisms and soil particles
If the carbon dioxide content in the atmosphere is increased then which one of the following would not get affected?
(a) Amount of the heat retained by the environment
(b) Process of photosynthesis in plants
(c) Global warming
(d) Existence of desert plants
Answers
Answer:
i think the answer of 1st question is option d nd 2nd question ans. is option c
Explanation:
itz akansha ......
Concept: Topsoil refers to the best quality soil which is great for cultivation
Given: A question and a few options
Find: The most appropriate option from the given questions
Solution: The topsoil is best for vegetation and the cultivation of crops.
The main components of this productive top layer are humus, living organisms and soil particles. Therefore, the correct option is an option (d) humus, living organisms and soil particles.
If the carbon dioxide content in the atmosphere is increased then it would cause an abundance of desert plants as when the temperature rises (due to excessive carbon dioxide emission) their ability to take up carbon dioxide reduces.
Therefore, option (c) Global warming is correct
Hence, the answer is now solved
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