Which of the following uses co2 fr carbon and h2 for energy?
a. chemoheterotroph
b. photoheterotroph
c. photoautotroph
d. chemoautotroph

The correct option is D. Chemoautotroph uses CO2 for carbon and H2 for energy.

Explanation:

Autotrophs can be described as organisms that are capable of making their own food. There are two types of autotrophs: photoautotrophs which use energy from the sunlight to produce food and chemoautotrophs have the ability to make biological compounds from inorganic matter.

The chemoautotrophs are capable of taking carbon from inorganic sources and converting them into useful organic compounds. They are also capable of taking hydrogen atoms and use them for deriving energy. Hence, D is the correct answer.

it would affect precipitation by causing flooding in some areas of the world due to climate increasing, causing the glaciers in the northern and southern pole of our planet to melt.

i wish you would have provided choices to simplify it and allow me to give an exact answer.