It is believed the major reason for the decline in amphibian species is
a. death through disease
b. changing reproductive habits
c. mutation
d. climate change

Answer;

-Climate change

Explanation;

-It is believed the major reason for the decline in amphibian species is climate change. Global climate change has made conditions more favorable for a new disease (chytridiomycosis) thus indirectly leading to extinctions and declines of amphibians.

- Direct consequences of climate change can also be expected because amphibians may be more sensitive to climate change than other species. Because of their permeable skin, biphasic lifecycles and unshelled eggs, amphibians are extremely sensitive to small changes in temperature and moisture

The major reason for the decline in amphibian species is climate change. The reason is that their habitats are changed in the process which is very crucial for their skins. Especially now that the climate change is prevalent and it is hard for them to adapt easily.