How many plant and animal species do wildlife experts estimate are endangered?
a. less than one million
b. 1 to 3 million
c. 3 to 10 million
d. 10 to 30 million

Answer;

c. 3 to 10 million

Explanation;

-An endangered species is a species of wild animal or plant that is in danger of extinction throughout all or a significant portion of its range. A species is considered threatened if it is likely to become endangered within the foreseeable future.

-Animals and plants that are at risk of becoming extinct because of threats from changing environments or predators are considered threatened or endangered. Examples, include;Ivory-Billed Woodpecker, The Amur Leopard,The Javan Rhinoceros and  Black Rhinoceros, among others,

one would be wind another would be water density

c. heat from the poles back down towards the equator.