The two most common elements found in Earth's crust are:

a. silicon and magnesium.
b. sodium and carbon.
c. silicon and aluminum.
d. silicon and oxygen.
e. sodium and potassium.


D

Environmental & Atmospheric Sciences

You might also like to view...

Straight-line boundaries between states suggest that the boundary was based on natural features, such as rivers or mountains

Indicate whether this statement is true or false

Environmental & Atmospheric Sciences

Cultivation of seafood under controlled conditions is called

A) controlled fish production. B) environmentally controlled seafood production. C) aquaculture. D) overfishing. E) seafood culture.

Environmental & Atmospheric Sciences

The four major subsystems of the Earth system are the atmosphere, hydrosphere, lithosphere, and _______________

Fill in the blank(s) with correct word

Environmental & Atmospheric Sciences

What is the important measure from weather radar that gives the intensity of the precipitation?

A) time of the echo B) brightness of the echo C) number of echoes from a single point D) height of the echo E) none of the above

Environmental & Atmospheric Sciences