Envi. Science 3.2 Quiz

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A park bench may become very hot on a sunny day. Why is the bench like the rock mentioned in the passage above?

because it absorbs energy and becomes hot

In the highest layer of the atmosphere call the thermosphere, gas temperature is high but particle density of gan molecules is ___, so little heat can be transferred there

low

Explain why Earth's surface does not get hotter and hotter.

Because oceans and land radiate the energy, that they have absorbed, back into the atmosphere.

Visible light, infrared radiation, and ultraviolet light are all forms of ___.

electromagnetic radiation

Electrically charged atoms are called ___

ions

Earth is surrounded by a mixture of gasses known as the

atmosphere

Approximately what percentage of solar energy that passes through the atmosphere reaches Earth?

50

What happens to the solar energy that is not absorbed by Earth's surface?

It is absorbed or reflected by clouds, gasses, and dust, or is reflected off of Earth's surface.

The flow of heat from a warmer object to a colder object when the objects are placed in direct physical contact is known as ___.

conduction

the flow of heat from a warmer object to a colder object when the objects are place in direct physical contact

conduction

A ___. current consists of air or a liquid moving in a circular path as it is heated and cooled

convection

the transfer of heat by air currents

convection

how does Earth's atmosphere change over time

gasses can be added or removed from the atmosphere through living organisms

the warming of the surface and lower atmosphere of Earth that occurs when cabon dioxide, water vapor, and other gases in the air absorb and radiate infrared radiation

greenhouse effect

The atmosphere contains ___ which trap radiated heat near Earth's surface.

greenhouse gasses

The second most abundant gas in Earth's atmosphere is ___.

oxygen

In the upper atmosphere, the form of oxygen that protects Earth from the sun's UV rays is called ___.

ozone

gas molecule that is made up of 3 oxygen atoms

ozone

the transfer of energy across space and in the atmosphere

radiation

All of the solar energy that enters Earth's atmosphere does not reach Earth's surface because it is either absorbed or ___.

reflected

extends from about 18 km to an altitude of about 50 km

stratosphere

where is the ozone layer found

stratosphere

in the troposphere, which of the following decreases as altitude increases?

temperature and pressure

Without the greenhouse effect, Earth's atmosphere would be ___ to support life.

too cold

extends to about 18 km above Earth's surface

troposphere

what is Earth's densest atmospheric layer

troposphere

How much of the sun's radiation does Earth receive?

two billionths

When solar energy reaches Earth, it is in the form of ___.

ultraviolet light, infrared radiation, and visible light


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