When it increases the pH goes down
As stated above, breathing is the biological process of inhaling and exhaling of the gases between the cells and the environment. The mechanism of breathing involves various respiratory structures such as the windpipe, lungs and nose. Respiration, on the other hand, is a chemical process that takes place in the cell.
The correct answer is:
A. Photosynthetic pigments absorb energy from light.

B) Most metals conduct heat readily. In pure elemental forms, they
neither have basic or acidic properties. Other properties include
malleability, high melting points, high densities, and electric
conduction.