Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Climate change > Earth’s Energy Balance (slide 3) > Flashcards

Earth’s Energy Balance (slide 3) Flashcards

1
Q

Radiation

A

is when energy travels as waves

Ex- Ultraviolet (U.V.) radiation from the sun

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Conduction

A

is when energy is transferred through contact

Ex- The handle of a metal pan getting hot when it is heated

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Convection

A

is when energy is transferred because of

differences in temperatures in a liquid or gas

Ex- ocean currents, or warm air rising and cool air falling

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Earth maintains a relatively constant global temperature-

A

a unique quality that
allows it to be able to maintain life

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Planets such as Mercury can be heated up 450 degrees Celsius from the Sun

Why doesn’t Earth get scorching hot?

A

earth has an atmosphere and it is further away from the sun

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

incoming solar energy

A

100%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

reflected by atmosphere

A

6%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

refleceted by clouds

A

20%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

reflected by earth’s surface

A

4%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

absorbed by atmosphere and clouds

A

19%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

absorbed by land and oceon

A

51%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

reflected back into space

A

30%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

energy is absorbed onto Earth

A

70%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

If there is an energy balance then that would mean:

A

the amount of energy absorbed = the amount of energy released

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

The absorbed 70% of
energy is actually
converted

A

to heat

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

The oceans and land begin
to radiate that heat

A

back
out into the atmosphere
and eventually back to
space

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Energy absorbed by living
things will also radiate
thermal energy

A

back into
space

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Other planets like Mercury do not have an atmosphere therefore it is unable to

A

reflect light (450 degrees C)
during the day and retain heat during the night (-170 degrees C)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

It is important for the energy to be converted to thermal energy because

A

it allows Earth to stay warm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

It is important for the energy to be immediately reflected back into space and have the thermal energy
slowly radiate back into space so

A

Earth does not reach scorching hot temperatures

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Earth’s ability to sustain life is because its

A

climate system

22
Q

Earth’s climate system is composed of the

A

atmosphere, hydrosphere, lithosphere,
and living things (sometimes biosphere)

23
Q

Atmosphere

A

The atmosphere is made of layers of gases surrounding Earth

24
Q

Hydrosphere

A

The hydroshere includes liquide water in lakes and oceons, water vapour in the atmosphere and ice in glaciers and at the poles.

25
Q

Lithosphere

A

The lithosphere is Earth’s rock crust including land surfaces

26
Q

living things

A

all living things on Earth are part of the climate.

27
Q

There are many gases that make up the atmosphere; the major ones that we
breathe are:

A

nitrogen (78%), oxygen (21%), combination of argon and carbon
dioxide (1%), and traces of helium, hydrogen, ozone, and water vapour

28
Q

The atmosphere is important because it reflect energy from the Sun to keep the
earth cool during the

A

day and keep the dangerous radiation away from living
things

29
Q

It also absorbs and radiates thermal energy (traps heat on Earth)

A

to keep the
planet warm during the night

30
Q

Ozone is a

A

naturally occurring gas in our atmosphere

31
Q

Ozone in the stratosphere is responsible for

A

absorbing/reflecting harmful
UV radiation and reflecting it away from Earth.

32
Q

Issue:

CFC’s are manufactured very stable compounds used in

A

pressurized sprays and
refrigerators

When CFC’s are released into the atmosphere they deplete the ozone in the stratosphere,
which allows more UV radiation to reach living organisms

33
Q

The hydrosphere is composed of

A

all water, water vapour, and ice on Earth

34
Q

The hydrosphere plays a major role in Earth’s climate system

A

(over 70% of Earth is
comprised of water)

35
Q

Liquid water and ice reflects

A

energy

36
Q

Liquid water and water vapour absorb energy

A

and radiate it as thermal energy (keeps
Earth warm

37
Q

Hydrosphere and Ice Sheets
Global warming caused by accumulating levels of greenhouse gases are

A

melting ice
throughout the world

38
Q

Increased levels of melting ice will cause

A

rising sea levels and a variety of other issues.

39
Q

The lithosphere is composed of

A

the earth’s crust

40
Q

The lithosphere reflects

A

some energy

41
Q

The lithosphere absorbs energy and

A

radiates it as thermal energy

42
Q

Lithosphere and Rising Sea Levels

Issue:

The amount of liveable space is dictated by the amount of water around us

A

(we are unable
to live on water)

43
Q

If we do not have enough land to sustain our population we will be unable

A

to maintain the
current population

44
Q

As sea levels rise, coastal communities will be

A

flooded

45
Q

Biosphere- Living Things
Living things are composed of the organisms

A

that live on Earth

46
Q

Living organisms generally absorb energy from the Sun

A

and radiate thermal (heat)
energy

47
Q

Plants can absorb CO2 and release

A

O2 into the atmosphere (removing GHG 🡪 cools
Earth)

48
Q

Animals release CO2 and CH4 into the atmosphere

A

(adds GHG 🡪 warms Earth)

49
Q

Greenhouse gases (GHG) accumulate in the atmosphere to warm Earth

Issue:

More agriculture and farms and a higher population of living animals can lead to

A

more GHG’s and global warming

50
Q

More clear-cutting of trees leads to less removal of

A

GHG’s and global warming

Climate change (6 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions