Forests provide habitat for ________ of all terrestrial species.
A) 60-80 B) 80-100 C) 40-60 D) 20-40 E) 0-20
Question 2
Course-grained sediments such as pebbles and cobbles often comprise the ________ in desert environments.
A) dunes
B) loess
C) blowout
D) desert pavement
