Heat is a product of
a. respiration
b. photosynthesis
c. osmosis
d. diffusion

Respiration

Explanation:

Respiration can be defined as the process by which the gaseous exchange takes place in between the lungs and outer environment.

In the cellular respiration, the chemical energy in the sugar is converted or transferred into ATP.

Some part of it is released in the form of heat. The chemical energy changes into heat energy.

Hence, the correct answer is option B

the answer is c on e2020, bud.

all these collisions do one thing, and that thing is explained in the last option. when dusst, rocks and ice collide, they harden and form giant layers of rocks or hard ice.

d)   to harden materials to form different parts of earth’s layers

hope it ,

bioteacher101