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17 questions
Which of the following are greenhouse gases?
Carbon Dioxide
Methane
Both of these
What do greenhouse gases do?
Reflect the sun's energy
Block the sun's infrared radiation
Act as a thermal blanket for the Earth, absorbing heat and warming the surface
They help light up the moon at night
What happens to the light energy from the sun when it hits the Earth's surface?
It is absorbed
It is reflected back to space
It is trapped by greenhouse gases in the Earth's atmosphere
If we didn't have the 'greenhouse effect' at all, Earth would
have volcanoes erupting everywhere
Cool to a point where we could not live here
Catch on fire
blow up from being hit by meteors
The greenhouse effect is a natural process
true
false
The greenhouse effect is caused by
more heat arriving at the Earth from the sun
the Earth releasing more heat at night
gases in the air trapping heat released by the Earth
The graph shows us that
the earth temperature is always increasing
the earth's temperature has steadily increased since 1900
the earth's temperature has steadily rising since the 1960s
the earth's temperature decreased during the 19th and 20th centuries
The area of human activity responsible for the highest greenhouse gas emissions is
energy supply
transport
agriculture
industrial
CO2 exists naturally in the atmosphere.
True
False
Which gases in Earth's atmosphere absorb infrared radiation (i.e. heat)? 2 correct answers.
CO2
Oxygen
Nitrogen
Water vapor
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