Quiz 1

Question 1

Which gas is the most abundant gas in Earth’s atmosphere today?

Answer 1

Nitrogen (78%)

Question 2

What do volcanoes and comets have in common in relation to the origin of earth?

Answer 2

volcanic eruptions led to large quantities of water and gases to have been emitted
comets also bombarded earth that brought water

Question 3

why do water molecules stick together readily?

Answer 3

because they ave electrically charged ends

Question 4

what percent of Earth’s liquid is drinkable

Answer 4

1%

Question 5

true or false does liquid water have a higher specific hear than mos other common substances

Answer 5

true

Question 6

when air at room temperature is saturated with water vapor, it contains about this much water by weight

Answer 6

4%

Question 7

when a parcel of air that contains a fixed amount of water vapor is cooled, the relative humidity of that air

Answer 7

increases

Question 8

where did the water form the oceans come from

Answer 8

• it came from icy comets and asteroids

- volcanic eruptions

Question 9

condensation nucleus

Answer 9

a small particle where water vapor condenses

Question 10

when a parcel of air is saturated with water vapor, the temperature of that air is equal to

Answer 10

the dew point

Question 11

true or false, when frost forms on a window, the glass is heated in the process

Answer 11

true

Question 12

why do hurricanes form only in certain places and only certain times of the year

Answer 12

because the waters are warm and they are able to get energy from the water vapor of oceans and condense to precipitate rain
-late summer: difference between temps in the air and sea surface are greatest

Question 13

definition of a calorie

Answer 13

amount of heat needed to raise the temperature of one gram of water one degree celsius

Question 14

due to the fact that the water molecule is bent

Answer 14

it has slight separation of electrical charges

Question 15

how do limestone columns form in a cavern

Answer 15

• water drips form the roofs slowly and evaporates
• as water evaporates, solid calcium carbonate is depositied on the roof
• build up forms long, deposits which grow downward
• can also happen on the floor

Question 16

why dont hurricanes form all year long?

Answer 16

the water temperatures are not warm enough to foster the growth of the storm

Question 17

what percent of earths ocean is not salty ocean water`

Answer 17

3%

Question 18

what percent of earths surface is water

Answer 18

75%

Question 19

how does water contribute to erosion

Answer 19

because the sediment in water breaks away at highspeed

Question 20

how does water contribute to volcanoes

Answer 20

through decompression melting, water is carried with descending plate (water driven from oceanic crust)

Question 21

what is percent of relative humidity

Answer 21

amount of water in air compared with amount/capacity possible

Question 22

full saturation equals what %RH

Answer 22

100%

Question 23

what is a hurricane

Answer 23

a storm that forms in hydro-logic cycle

Question 24

what is the ITCC

Answer 24

where warm moist air from the north and south converges at the equator

Question 25

why do earthquakes die over land

Answer 25

because their source of energy is gone, winds are slowed by mountains/land bc there is more friction

Question 26

under normal atmospheric conditions, when does condensation occur?

Answer 26

when a surface exists on which the water vapor can condense

Question 27

two ways to increase RH

Answer 27

- fixed amount of water, temperature decreases | - fixed temperature, pump more water vapor into air past saturation