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WorksheetsSocial Studies B Grade 4
Total questions: 10
Worksheet time: 5mins
What is the layer of air around the Earth called ?
Trophosphere
Hemisphere
Atmosphere
What is the weather in an environment over a short period of time called ?
Climate
Atmosphere
Weather
What happens to most solar radiation when it reaches the surface of the earth ?
it reflects back
it's absorbed by land ,water ,and plants .
it's collected in solar panels
it disperses throughout the earth's atmosphere
About 78% of the Earth's atmosphere is comprised of -------
oxygen
carbon dioxide
nitrogen
What would happen if there were no atmosphere ?
temperatures would be super cold all the time and the ice ages would return
temperature would be super cold at night and super hot during the day
temperatures would be super hot all the time
How can cutting down trees increase global warming ?
Trees use carbon dioxide from the air to conduct photosynthesis
Trees absorb the sun's energy without radiating it back into the atmosphere
Trees provide shade, which counteracts global warming
Gases that keep the Earth's temperature steady are called
Greenhouse gases
Heat gases
Atmosphere gases
The increase of carbon dioxide in the air increase the amount of greenhouse in the atmosphere .This increase in greenhouse gases is beneficial for the planet Earth .
True
False
What causes global warming ?
Many volcanic eruptions around the world
Extra heat being trapped on the planet by greenhouse gases
Fire in the Amazon forests
Global warming refers to an average ---------in the Earht's temperature ,which in turn causes changes in -----------.
increase ,climate
increase ,temperature
decrease ,climate
