Author Question: Compared to the evolutionary long-term historical average rate of extinction, extinction rates today ... (Read 191 times)

mikaylakyoung · **on:** Jul 16, 2018

Compared to the evolutionary long-term historical average rate of extinction, extinction rates today are

A) lower.
B) about the same.
C) higher.
D) changing from higher to lower rates in the past century.

Question 2

In Alaska, some coastal areas are threatened by climate change because

A) warmer air temperatures have drastically altered agricultural patterns.
B) much of the Aleutian archipelago has already been submerged.
C) sea ice and permafrost have melted, increasing wave action and soil instability.
D) traditional fish used for food migrated elsewhere to escape the colder ocean temperatures.