Which of the following is NOT a greenhouse gas?
a) water vapor
b) nitrous oxide
c) artificial fertilizers
d) carbon dioxide
c) artificial fertilizers
100
What was the level of carbon dioxide in the atmosphere 200 years ago? (before the Industrial Revolution)
275 ppm
100
True or False:
Carbon moves through every stage of the cycle as a molecule of carbon dioxide.
False.
100
Which country emits the most carbon dioxide per person?
United States
100
What do cyclical changes in the tilt and shape of the Earth's orbit around the Sun cause?
Ice Ages
200
True or False:
The Greenhouse Effect allows heat or infared energy from Earth's surface to pass directly out through the atmosphere and back into space.
False
200
What is the current level of carbon dioxide in the atmosphere today?
400 ppm
200
True or False:
The Carbon Cycle involves all of Earth's spheres: geo, bio, hydro, and atmospheres.
True
200
Which country produces the most carbon dioxide in total each year?
China
200
What is the name of the process in which plants release oxygen into the air?
photosynthesis
300
Which planet has an atmosphere with an extreme greenhouse effect?
Venus
300
True or False:
Leaving electronic devices plugged in or on standby when you are not using them increases your carbon footprint.
True
300
True or False:
Carbon spends the longest amount of time in the geosphere part of the cycle.
True
300
True or False:
Wood is a fossil fuel
False
300
True or False:
Crude oil is a fossil fuel
True
400
What has been happening to the concentrations of greenhouse gases in Earth's atmosphere over the past 200 years?
It has been increasing.
400
True or False:
Photosynthesis releases carbon dioxide into the air.
False.
400
True or False:
Carbon is able to move from the air to the ocean by dissolving in water.
True
400
What were carbon dioxide levels like during the last Ice Age?
much lower than they are today
400
True or False:
Coal is a fossil fuel.
True
500
True or False:
Without the Greenhouse Effect, Earth's temperature would be unsuitable for most forms of life.
False
500
How long does carbon dioxide stay in the atmosphere once it has been emitted?
a few hundred years
500
By about how much has the Earth's global surface temperature increased over the past 100 years?
0.6 degrees Celsius (1.4 F)
500
Name three ways that climate change is affecting the oceans?
arctic sea ice is melting
coral reefs are dying
ocean water is becoming more acidic