Climate Change Flashcards


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1

What are the major components of earths atmosphere?

Nitrogen, oxygen, argon, Carbon dioxide

2

What is the ozone layer and why is it important? What is ozone?

The ozone layer is in the stratosphere and is made up of ozone which is 3 oxygen atoms combined into one molecule. It is important because it protects us from UV rays.

3

Describe how pressure and temperature change as you increase altitude into the atmosphere.

Temperature decreases as you increase altitude due to thinner air and pressure decreases because there is less air and atmosphere above you.

4

What are the 2 principle motions of Earth? Describe each.

Rotation and revolution. Rotation is in one day and its the earth spinning on an axis, revolution takes one year and it is the earth spinning around the sun.

5

What causes length of our days to get shorter and longer with the seasons?

Because our Earth spins on an axis.

6

What is the cause of seasons on Earth?

Because the Earth spins on an axis the relation to the sun will change making some seasons warmer than others.

7

List the 4 dates that start a change in season. How are they determined?

June 21-22-------December 21-22

March 21-22-------September 22-23

The longest/ shortest days of the year

8

How are heat and temperature related?

Temperature is the average kinetic energy in an object and heat is the transfer of energy from one molecule to the next. They are related because the amount of heat an object has relies on its temperature.

9

List the 3 major mechanisms of heat transfer in the atmosphere.

Convection, conduction, radiation

10

How is the atmosphere affected by convection, conduction, and radiation?

Convection will affect how the air temp is because of the moving energy. radiation will affect how an object radiates heat and will warm up the atmosphere, and conduction will just warm up the air in general.

11

Describe what can happen to solar radiation when it strikes an object.

The object can either absorb, reflect, or the radiation can go right through the object.

12

Contrast reflection and scattering

Reflection is the light hitting an object and bouncing off in one place, scattering is the light hitting an object and bouncing off in many different directions.

13

List and describe the 5 main controlling factors for why temperature varies on Earth.

Heating of land and water, altitude, cloud cover, geographic position

14

List and describe the 6 factors that affect climate

Atmospheric circulation, topography, elavation, latitude, Water bodies, vegetation

15

What are the 5 natural processes that can cause climate change? Describe each.

Volcanic eruptions, ocean circulation, solar activity, earth motu=ions, greenhouse effect

16

Describe the greenhouse effect. How does it work? What are the main gases that cause it?

The greenhouse gases get released into the atmosphere and hold onto any heat being sent up there causing global warming. CO2, methane, ozone, water vapor.

17

What greenhouse gases are the ones added to the atmosphere by humans?

CO2 and methane

18

What problems is the warming of our atmosphere causing or will cause in the future?

Wildlife will not be able to survive, ice will melt causing sea levels to rise causing more precipitation.

19

What evidence do we use to help us understand what past climates are like, so we can compare the past to our current situation?

Cathrates, ice cores, glacial evidence.

20

What is albedo?

The amount of radiation reflected by a surface.

21

What is the difference between O-16 and O-18 molecules?

If the climate is warmer there will be less O-18 in oceans and if the climate is colder there will be more O-18 in oceans.

22

What is the difference between weather and climate?

Weather is what is happening in a place at a certain time, climate is the average weather over many years.

23

What layer is the ozone layer in? What layer do we live in?

Ozone layer- Stratosphere

Earth- Troposphere

24

What is conduction?

The heat changes from molecule to molecule.

25

What is radiation?

The amount of heat given off through electromagnetic waves.

26

What is convection?

The mass movement of heat by circulation.