Scientists always identify biodiversity hotspots by counting the number of endemic species.
a. true
b. false

The Correct Answer is True.

Explanation:

Biodiversity hot spots focus attention on areas where a large number of species can be protected with the least number.

The United States has passed a law in 1973 to protect its biodiversity

has three major parts:

This law forbids citizens and the government from harming and killing of the listed species.This law also forbids the trade of those spices which are listed species by this law.United States fish and wildlife service need to maintain the official list of endangered and threatened species and maintain their recovering plan.

Your answer would be, the process of thermal expansion, and contraction, is one form of mechanical weathering. which is where the substance as been heated, and it expands; as the substance cools, it contracts.hope that