Question

1) What will happen if
a) The plant leaves are devoid of stomata?

b) All the plants perish from the Earth.

2) How can you say photosynthesis maintain a balance between Oxygen and Carbon
dioxide in the atmosphere?

3) How is ruminant's stomach different from human stomach?

4) Which structure in Amoeba can be compared to the mouth of humans?

5) Animal activists are against the silk production. Why?

6) Why is water not used instead of mercury in thermometer when it is easily available to us?

7) A person has a white and black shirt which shirt will make him more comfortable in

(a)winters, (b) summers? Give reasons for your answer.

8) Why do mud houses with thached roofs keep cool in summers and warm in winters?

9) How acids are helpful in maintaining our good health?

10) Why is making of tubewells prohibited in residential areas?

11) Why is distribution of water uneven in our country?

12) Explain, How deforestation can lead to depletion of groundwater?

Note: a) make a separate and slim notebook for the vacation work of science.

b) Write all the keywords or tough words (5 times each) in the same notebook.

c) Learn and prepare all the chapters for half yearly examination.

pls answer all questions​

Answer 1

Answer:

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Answer 2

Answer:

a...plants can't able to make their food properly and they never get thr gree colour

b...we all are die.

2..The process photosynthesis can done only by plants..so during photosynthesis plant take co2 frm the atmosphere for making their food and therefore release oxygen,but if we cut the trees this balance get disturbed ..

3..