Apologia Earth Science Lesson 3

What sphere includes all living things ?

(a)  

Which sphere contains all of the water in, on, and above the earth ?

(a)  

Which sphere includes all of the solid surface of the earth down to the core at the center of the earth ?

(a)  

Which sphere includes all of the gases surrounding the earth ?

(a)  

Which layer is the innermost layer of earth made of iron and nickel ?

(a)  

Which layer is the thinnest and outermost layer of the earth ?

(a)  

Which layer lies between the core and the crust ?

(a)  

Most of the water on earth is

Freshwater makes up this much of the water on earth ?

Which layer of the atmosphere protects the earth from meteors by burning them up (shooting stars) ?