NEW
Font size
WorksheetsCarbon Cycle & Greenhouse Effect
Total questions: 10
Worksheet time: 6mins
Which is a true statement?
Humans depend on oxygen, plants depend on carbon dioxide
Plants produce carbon dioxide
Humans depend on carbon dioxide, plants depend on oxygen
Humans don't depend on plants for the air they need
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
Compared to the variations over the last 400,000 years, which has increased most dramatically in the past 100 years?
Atmospheric CO2 concentration
Global Temperatures
Sea level
Which of these statements is true?
Infrared light comes into the earth, and the earth radiates visible light.
Visible light comes into the earth and the earth radiates infrared light.
Atmospheric carbon dioxide blocks
all out going Infra Red radiation
all IR radiation at certain wavelengths
about half of the IR radiation at certain wavlengths
