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WorksheetsGlobal warming and Green house effect
Total questions: 24
Worksheet time: 46mins
What is the blanket of air in which the Earth is wrapped called?
oxygen
atmosphere
galaxy
space
The atmosphere is made up of ___________ natural gases.
two
one
several
few
Gases that keep the Earth's temperature steady are called
Greenhouse gases
atmospheric gases
Heat gases
temperature monitors
The natural process between the sun, the atmosphere and the Earth is called the
greenhouse gas
Carbon emission
Earth's temperature
greenhouse effect
What gas do human beings breathe out?
methane
oxygen
carbon dioxide
nitrogen
Green plants absorb carbon dioxide and produce ___________ during photosynthesis.
Oxygen
Carbon Dioxide
Methane
Nitrous oxide
The increase of carbon dioxide in the air increases the amount of greenhouse gases in the atmosphere. This increase in greenhouse gases is beneficial for planet Earth.
TRUE
FALSE
What causes global warming?
Fire in the Amazon forests
Extra heat being trapped on the planet by greenhouse gases
Many volcanic eruptions around the world
At what time did global warming start to occur?
Last year
At the beginning of the last decade
Around the time of the Industrial Revolution
Global warming refers to an average _________ in the Earth's temperature, which in turn causes changes in _________.
increase, climate
decrease, climate
increase, temperature
decrease, temperature
A warmer Earth may lead to
changes in climate
a rise in sea level due to the expansion of sea water
the melting of the ice caps
All answers mentioned
Greenhouse gases naturally regulate Earth's temperature and are therefore good gases.
True
False
Greenhouse gases like carbon dioxide, methane, nitrous oxide, and ozone let sunlight in to heat the Earth’s surface but they don’t let all that heat energy back out.
True
False
Burning fossil fuels does NOT create greenhouse gases, thus polluting the atmosphere.
True
False
The graph below shows CO2 emissions and temperatures from 1909 to 1949. What conclusion is best supported by the graph?
There is no relationship between carbon dioxide concentrations and temperatures
As carbon dioxide concentrations increase, temperatures increase
As carbon dioxide concentrations increase, temperatures decrease
As carbon dioxide concentrations decrease, temperatures increase
How is the greenhouse effect produced?
When solar energy trespasses the atmosphere.
When some energy is reflected back to earth.
When the green house is burned.
When the sun doesn't emit radiation.
How are greenhouse gasses harming our environment?
They aren't
Less heat is able to escape causing the Earth to cool down
Less heat is able to escape causing the Earth to warm up
More heat is able to escape
