Earth Science Chapter 18

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

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

Aircraft that travel long distances fly in the ________ to avoid storms and benefit from the jet stream.

The layer of the earth's atmosphere farthest from the earth's surface is composed of _____________.

What is the coldest layer of the atmosphere?

In temperate zones, the tropospheric lapse rate

gases separate into layers

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

An example of a greenhouse gas is ________.

Ozone in the atmosphere is made up of ________ oxygen atoms.

The kind of air pollution that makes many of our cities appear hazy is called _____.

In addition to being a protective layer, the magnetsphere also produces beautiful ____.

The atmosphere was probably created on the second day of Creation.

The gas called ozone is composed of _______ atoms.

NASA can communicate with astronauts above the ionosphere becasue the ionosphere does not reflect ________.

The atmosphere is the largest nitrogen reservior for the global nitrogen cycle.

the steady temperature change associated with altitude change

Which of the following would not be directly affected by variations in atmospheric oxygen levels?

Which of the following is an example of conduction?

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

the continuum of energetic wave known as light energy

Exposure to any kind of ultraviolet light in any amount is dangerous and should be avoided.

fast winds that travel in paths in the stratosphere

The ozone layer extends from about 20km to 50km above the earth's surface. In which temperature layer does it fall?

indirect warming of the atmosphere

gases mix

Why did Felix Baumgartner need a spacesuit when he did his record-breaking free-fall jump in 2012?

The color of an aurora depends on which composition layer of the atmosphere it forms in.

Which atmospheric layer directly affects radio communication on Earth?

Most of the direct solar energy that reaches the earth is absorbed by _____.

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

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

Assuming that you could survive without a space suit in the thermosphere, in the earth's shadow you would feel

The most abundant gas in the homosphere is _____________

The coldest temperatures of the atmosphere are found at the top of the ______.

In which temperature layer do most people live?

The Haber-Bosch process is a(n)

Most plants in the world depend on ________ nitrogen produced by soil and marine bacteria.

Excessive exposure to UV rays can cause which of the following in humans?

Nearly every year a thin spot in the ozone layer developes over ______.

A region extending thousands of km into space that includes the exosphere and Van Allen belts is called the ________.

The ozone layer protects life on Earth from dangerous radio waves from the sun.

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

On average, the coldest temperatures in the atmosphere occur

Ammonia is a compound that contains nitrogen.

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

In the carbon cycle, carbon is moved from the atmosphere into plants by ______.

Lightning is a natural agent of nitrogen fixing.

The density currents that cause air to mix are an example of ________.

Most of Earth's weather happens in the ______.

What is the hottest layer of the atmosphere?

Of the solar energy that makes up the solar constant, most of it is __________.

the envelope of gases surrounding the earth

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

rate of solar energy flow that reaches the earth

Which of the following gases was not present in the earth's earliest atmosphere according to naturalistic scientists?

Which of the following weather conditions allows the earht's surface to absorb the most heat from the sun?