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Flashcards in Unit 1 Deck (73)
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1

Which of the following is not a variable gas?

A. Carbon Dioxide

B. Oxygen

C. Ozone

D. Water vapor

B

2

Why is the top of the troposphere colder than the bottom?

 

The air is heated by the surface

3

Why is the top of the stratosphere warmer than the bottom?

Because ozone absorbs solar energy

4

Which temperature scale initiates with absolute zero?

Kelvin

5

Of the permanent gases, which is the most abundant and comprises approximately 78 percent of the atmosphere by volume?

Nitrogen

6

Which of the following gases is removed from the atmosphere by photosynthesis?

Carbon dioxide

7

Why has carbon dioxide increased by about 1.8 ppm per year since measurements began? (Choose all that apply)

A. Anthropogenic combustion of fossil fuels

B. Increased photosynthesis

C. Deforestation

A, C

8

What causes the depletion of the beneficial ozone in the stratosphere?

CFCs

9

Which of the following is not an element of the scientific method?

A. Hypothesis

B. Analysis

C. Redirection

D. Prediction

C

10

The temperature is lowest here:

A. Mesopause

B. Stratopause

C. Tropopause

D. Stratosphere

A

11

The "stratosphere" warms because of:

The interaction of ozone and ultraviolet light

12

What is the distance from one wave crest to the next wave crest?

Wavelength

13

Which wavelengths in the electromagnetic spectrum are visible to the human eye?

0.4 - 0.7 microns

14

At what wavelength does the sun emit the most radiation?

0.5 microns

15

At what wavelength does Earth emit the most radiation?

10 microns

16

During which month are the Sun's rays directly overhead at the equator?

March and September

17

When does the subsolar point coincide with 23.5 degrees N?

June

18

What is the total daily radiation receipt at a location dependent upon?

Latitude and day length

19

The standard unit of energy in the international system (SI) is:

Joule

20

During which month does perihelion occur?

January

21

Earth's peak emission of 10 micrometers can be quantified using which radiation law?

Wien's Law

22

What are three main mechanisms for heat transfer between Earth's atmosphere and surface?

Conduction, convection, and radiation

23

Which type of scattering is caused by small gas molecules and affects shorter wavelengths?

Rayleigh

24

Which type of scattering is caused by larger aerosols and affects longer wavelengths?

Mie

25

How much of the incoming solar radiation at the top of the atmosphere actually reaches the surface of Earth?

54 percent

26

How much of the incoming solar radiation at the top of the atmosphere is absorbed by the atmosphere?

23 percent

27

What is the total planetary albedo?

30 percent

28

What is the process whereby radiation making contact with the surface is redirected away without being altered?

Reflection

29

What is the term for the 8- to 12-micrometer region of Earth's emission curve?

Atmospheric window

30

The specific heat of water is how much greater than that of land?

Five times