BJU Earth Science Chapter 18

What is the name of the layer consisting of a mixture of gases that extends up to 80km?

Converts light energy to heat.

The troposphere is the only atmospheric layer to have winds

reflects radio waves

If the ozone layer extends from 20 km to 50 km above the earth's surface, in which temperature layer is it

warming air in direct contact with a hot, parking-lot blacktop

Nearly every year, a thin spot in the ozone layer develops over __________.

Which temperature layers are included in the homosphere?

If an atmosphere with 21% oxygen is good for us, then an atmosphere with 100% oxygen would be much better.

fast winds that travel in paths in the stratosphere

The most significant role for nitrogen in the atmosphere is to

Which of the following layers would be most effective in protecting the earth from a solar flare?

Auroras occur when charged particles escape from the ionosphere into the magnetosphere

Warming the upper atmosphere by rising air

Humans have a God-given responsibility to take care of the atmosphere.

The gas called ozone is composed of __________ atoms.

Indirect warming of the atmosphere

Absorbs high-energy ultraviolet light.

The continuum of energetic wave known as light energy

Which of the following converts atmospheric nitrogen to a usable organic form?

The aurora borealis and aurora australis

Warming water as it absorbs the sun’s rays

The steady temperature change associated with altitude change

The percentages of gases in the homosphere remain relatively constant.

the Van Allen Belts

Rate of solar energy flow that reaches the earth

The greenhouse effect occurs when land and water heated by the sun warm the air.

What is the coldest layer of the atmosphere? 

The envelope of gases surrounding the earth

Except for the homosphere, gases in the rest of the atmosphere separate into layers that are ordered by # of atoms

The most concentrated form of solar energy at the earth’s surface occurs when the rays...

In which temperature layer do most people live?

Almost all of the sun's energy makes it to the earth's surface.

Where do plants get their carbon as part of the carbon cycle?

What is the hottest layer of the atmosphere?

In which layer of the atmosphere will you find oxygen?