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Flashcards in Atmosphere Composition & Layers Deck (37)
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1

what is Earth's atmosphere composed of?

air

2

air is a mixture of...

gases and suspended particles

3

What three gases comprise air?

nitrogen, oxygen, argon

4

In EArth's atompherse there are small quantities of ____ and _____

CO2, CH4

5

The atmosphere is ______ percent nitrogen and _______ percent oxygen

78, 20

6

what are two trace gases?

carbon dioxide and methane

7

what important properties do some trace gases have?

absorb radiation - protect and warm

8

Trace gases that absorb radiation are called...

greenhouse gases

9

Greenhouse gases are trace gases that absorb ______

radiation

10

What are the four main layers of the atmosphere?

troposphere, stratosphere, mesosphere, thermosphere

11

what are the boundaries in-between the four main layers of the atmosphere called?

pauses

12

pauses are the the_______ of four main layers of the _______

boundaries, atmosphere

13

Which is the lowest layer of the atmosphere?

troposphere
where all human activity occurs.

14

The troposphere is kept warm by Earth's ______

surface

15

as you go higher in the troposphere, the temperature ______

drops

16

the average rate of temperature drop is called the ________ _______ rate

environmental lapse

17

What is the environmental lapse rate in the troposphere?

drop of 6.5 degrees celsius per 1000m

18

the boundary between the troposphere and the stratosphere is called the .....

tropopause

19

what is located in the stratosphere?

the ozone layer

20

the _______ layer is in the stratosphere

ozone

21

the ozone layer contains ______ gas

ozone

22

Ozone efficiently absorbs UV ______ and ______

light and radiation

23

what does the ozone efficiently absorb?

UV light and radiation

24

why does the temp increase in the stratosphere?

because of all of the absorption of UV light

25

list the four layers of earth's atmosphere and their boundaries in increasing elevation?

troposphere -> tropopause ->stratosphere -> stratopause --> mesosphere -> mesopause -> thermosphere

26

Does temp increase or decrease in troposphere with elevation?

decrease

27

Does temp increase or decrease in stratosphere with elevation?

increase

28

Does temp increase or decrease in mesosphere with elevation?

decrease

29

Does temp increase or decrease in thermosphere with elevation?

increase

30

the ozone layer located in the ______ is a _______ layer of earth because it absorbs UV rays

stratosphere, protective