Earth's crust (or the Earth's lithosphere) is broken into how many rigid plates that have various sizes and can move?

a. ~ 10
b. ~ 20
c. ~ 50
d. ~ 100


Answer: b. ~ 20

Environmental & Atmospheric Sciences

You might also like to view...

Which sequence of numbers reflects the order in which the layers were deposited?

A. 4, 3, 1, 2 B. 1, 2, 3, 4 C. 1, 3, 4, 2 D. 4, 3, 2, 1 E. None of these.

Environmental & Atmospheric Sciences

Which of the following forms of radiation is identical to the nucleus of a helium atom?

A) a

Environmental & Atmospheric Sciences

Biological weathering includes processes that are fundamentally physical or chemical in nature

a. True b. False Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

Autotrophic organisms are ________.

A. the base of the food web B. able to photosynthesize C. able to chemosynthesize D. All of these are correct. E. None of these is correct.

Environmental & Atmospheric Sciences