is this won true or false In Earth’s atmosphere, cold air rises and warm air rises. i think it is true becouse of Earth’s atmosphere is cold and hot

False

Explanation:

Heat rises, but cold air doesn't. Cold air is heavier than warm air is.

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.