Give reasons for the following:-
At higher temperatures, green plants start evolving `CO_(2)` instead of `O_(2)`.

Give reasons for the At higher temperatures, green plants start evolving CO_(2) instead of O_(2) .

Give reason for the following All the food chains begin with green plants.

Give reason for the following Green leaves are thin and broad.

Assign reasons for the following : (a) Co^(2+) has higher magnetic moment than Ni^(2+)

The negation of the statement Plants take in CO_(2) and give out O_(2) " is

The negation of the statement ''Plants take in CO_(2) and given out O_(2) "

During day time the green plants show a ratio of CO_(2) consumption to CO_(2) production of

Give reasons for the following : (a) Alumina is dissolved in cryolite for electrolysis instead of being electrolyzed directly. (b) Zinc oxide can be reduced to metal by heating with carbon but Cr_(2)O_(3) cannot be reduced by heating with carbon.