what is the main reason why raising cattle contribute to global warming?

Question

a. Cattle have microbes in their stomach that produce methane during digestion.
b. Cattle store nitrogen, which is released as nitrous oxide as they die.
c. Cattle release carbon dioxide as they breathe, similar to humans.
d. Cattle eat grass, which reduces the amount of plants that remove atmospheric carbon dioxide.

Answer 1

a. Cattle have microbes in their stomach that produce methane during digestion.