quiz 4??

Question 1

A ____ is a massive, long lasting accumulation of compacted snow and ice that forms on land and moves downslope or spreads outward under its own weight

Answer 1

Glacier

Question 2

A glacier that forms in mountainous terrain and covers an area of less than 50,000 square kilometers

Answer 2

Alpine

Question 3

The ice sheets of greenland and antarctica contain __ percent of the world’s ice

Answer 3

99

Question 4

The Pleistocene Glaciations began about __ years ago

Answer 4

2 million

Question 5

Currentl, Earth only has 2 ice sheets

Answer 5

True

Question 6

Alpine glaciers are found on every continent on Earth

Answer 6

False

Question 7

Pressure from the weight of underlying ice favors melting at the base

Answer 7

true

Question 8

Cycles identified by Milutin Milkanovic are caused by

Answer 8

variations in Earth’s orbit and spin axis

Question 9

Glaciers form u-shaped valley

Answer 9

true

Question 10

the largest soufce of air pollutants in the United States come from

Answer 10

transportation

Question 11

James Lovelock used the term __ to refer to Earth, comparing it to a living creature due to the interconnectivity of all its systems

Answer 11

Gaia

Question 12

__ is the release of volatiles from Earth’s mantile in volcanic eruptions

Answer 12

outgassing

Question 13

During photosynthesis, plants convert __ and __ to organic sugars and oxygen

Answer 13

Carbon dioxide and water

Question 14

In the __ temperature increases with altitude, because ozone absorbs ultraviolet radiation

Answer 14

Stratosphere

Question 15

Solar energy breaks oxygen molecules apart in the stratosphere, releasing___, that then combine with additional oxygen molecules to form __

Answer 15

Oxygen atoms; ozone

Question 16

Which of the following shows the correct order of the atmospheric layers, from the lowest layer to the highest layer

Answer 16

troposphere < stratosphere < mesosphere < thermosphere

Question 17

Completely bumed hydrocarbons produce ___

Answer 17

carbon dioxide and water

Question 18

The primary source of sulfur dioxide pollution is __

Answer 18

coal-fired electric generators

Question 19

Which statement describes the process of photosynthesis?

Answer 19

Chlorophyll-bearing plants convert carbon dioxide and water to organic sugars and release oxygen

Question 20

Acidic precipitation is produced by

Answer 20

Sulfur dioxide and nitrogen oxides dissolving in moist air

Question 21

Donora-type incidents in the united states have not been repeated

Answer 21

false

Question 22

The clean air act and its amendments have done little to decrease total emissions of air pollutant

Answer 22

false

Question 23

temperature decreases continuously with altitude in all atmospheric layers

Answer 23

false

Question 24

ozone is both a pollutant and a beneficial component of the atmosphere, depending on elevation

Answer 24

true

Question 25

The ozone in the uppr atmosphere protects life on earth by absorbing much of the high-energy ultraviolet light before it reaches Eath's surface

Answer 25

true

Question 26

About __ percent of the incoming solar radiation reaches Earth's surface

Answer 26

50

Question 27

__ plays an important role in heat transfer and storage because it commonly occurs naturally on Earth in all three states: solid, liquid, and gass

Answer 27

water

Question 28

The wavelength (color) of emitted electromagnetic radiation is determined by the __ of the source

Answer 28

temperature

Question 29

The cooling of Earth will cause more snow glaciers to grow, which will cause evedn more cooling. This is an example of a(n) ___ mechanism

Answer 29

Feedback

Question 30

Why doesnt Earth get hot enough to boil oceans and melt rocks from the radiant energy it absorbs from the sun?

Answer 30

Rocks, soil, and water reemit most of the energy they absorb from the sun

Question 31

Earth remains warm at night because...

Answer 31

the atmosphere absorbs and retains much of the radiation emitted from the surface

Question 32

The regiion of the globe directly beneath the sun is warmer because it

Answer 32

receives direct sunlight

Question 33

The most important greenhouse gases in the atmosphere are

Answer 33

water vapor, carbon dioxide, and methane

Question 34

Why do continental interiors show greater seasonal extremes of temperature than coastal regions?

Answer 34

Specific heat of land causes faster heating and cooling compared to ocean water

Question 35

The emission of radiation requires a relatively high albedo

Answer 35

False

Question 36

Incoming solar radiation is absorbed by Earth's surface as long-wave radiation and reemitted as short-wave radiation

Answer 36

false

Question 37

snowfields and glaciers have relatively low albedo

Answer 37

false

Question 38

ocean currents play a major role in determining average temperature of a given region on Earth

Answer 38

true

Question 39

If earth had no atmosphere, radiant heat loss would be so rapid that Earth's surface would cool drastically at night

Answer 39

true