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WorksheetsCharacteristics of the Earth Necessary to Support Life
Total questions: 10
Worksheet time: 6mins
1. The entire mass of air that surrounds Earth, made up of 78% nitrogen, 21% oxygen, and trace amounts of other gases.
Ozone Layer
Atmosphere
Solar Winds
Magnetosphere
2. What characteristics of the planet, Earth, is essential to the survival of living organisms?
Earth has abundant available water.
Earth has one orbiting moon.
Earth orbits the Sun once every 365 days
All of the above
3. What is the most important factor that determines Earth’s temperature?
Distance to the Moon
Proximity to the Sun
Gas composition of the atmosphere
Amount of water on the planet
4. Which of the following is NOT a requirement for life to exist on a planet?
presence of water
just the right amount of gases in the atmosphere
just the right period of rotation
just the right distance from the Sun
5. Which 2 elements make up most of Earth's atmosphere?
Nitrogen and Oxygen
Oxygen and Carbon Dioxide
Nitrogen and Carbon Dioxide
Carbon Dioxide and Water Vapor
6. Even though the moon is in the habitable zone, why is there no life there?
There is no atmosphere.
There is no water.
It is exposed to solar radiation.
All of the above
7. Which planet would be the most likely place to observe for life?
A
B
C
D
8. The diagram below represents the Sun and planets of our solar system. Which planet on the above diagram represents Earth?
G
H
K
M
What is the importance of the magnetic field of the Earth?
(a)
What would happen to the Earth if it stopped from spinning?
(a)
