______________ means how high you are above Earth.​

_______________ is the force of air pushing down on us.

This is the layer of the atmosphere where all the weather happens. 

This layer of the atmosphere is where meteors burn up.

This layer of the atmosphere is the warmest. 

This layer of the atmosphere is the coldest. 

This layer of the atmosphere is the outermost level. Satellites orbit here.

As altitude increases, air pressure __________.

This layer of the earth has a solid upper part with magma flowing beneath it.

This layer of the Earth is solid; cool and thin compared to the other layers.

This is the hottest and most tightly pressed together layer of the Earth.

The biosphere is the part of the Earth that deals with __________.

Biotic components of an ecosystem are...

Abiotic components of an ecosystem are

How do animals get the nitrogen they need?

What are the four elements that are essential for life?

This category of pant performs nitrogen fixation.

These two spheres of the Earth combine in a unique way to form hurricanes.

__________ are an example of a legume.