AnswersEarth Systems BLab: Environmental Changes in a Watershed

Energy in the Atmosphere Answers

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How do ice and water on the ground affect incoming solar radiation?

A
They filter 22 percent of solar radiation that reaches the surface.
B
They reflect 4 percent of solar radiation that reaches the surface.
C
They absorb 100 percent of solar radiation that reaches the surface.
D
They scatter 5 percent of solar radiation that reaches the surface.
3

What happens to the particles of a substance as its temperature increases?

A
They move faster.
B
They move slower.
C
They lose some energy.
D
They move in a circular direction.
4

Look at the diagram showing the different wavelengths in sunlight.

Question illustration
A
red light
B
violet light
C
infrared light
D
ultraviolet light
6

Which process causes Earth’s surface to warm?

A
the conduction of heat by air above Earth's surface
B
the radiation of the Sun’s electromagnetic waves
C
the convection of warm air from the atmosphere
D
the reflection of electromagnetic waves off bodies of water
8

Why is the sky orange and red at sunrise and sunset?

A
Gases absorb orange and red light.
B
Blue wavelengths are absorbed by the atmosphere.
C
The thick atmosphere scatters all but longer wavelengths.
D
Only short wavelengths are radiated from the Sun in the morning and evening.
9

Which lists three parts of sunlight that make up some of the visible spectrum?

A
green, blue, indigo
B
infrared, red, orange
C
ultraviolet, infrared, electromagnetic
D
violet, ultraviolet A, ultraviolet B
10

How do the magnetic and electrical components of electromagnetic waves travel in relation to each other?

A
at right angles
B
toward each other
C
in a circular motion
D
parallel to each other

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