GIVE REASONS :-
1.WE PANT WHILE CLIMBING STAIRS .
2. HAIRS-LIKE PROJECTION PRESENT IN ROOTS.
3. HEART MAKES TWO SOUNDS WITH EACH BEAT.
4. PLANTS EXCRETE LESS CARBON DIOXIDE DURING THE DAY TIME. 
5. TINY DROPLETS OF WATER APPEAR IF A PLANT IS COVERED BY PLASTIC.

Dear student above are the answer of 2 and 3 respectively , for other queries please ask us in different thread

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3..fue to closure of valves ...plz check this
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2 I know...to absorb more water and minerals from soil as root hairs increase area for absorption
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Because
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4..I cant write 4 th ans..main term is saying that it is in app appropriate.. any ways its ans is......
As synthesis goes along with respiration
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5 due to transpiration
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thanks
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