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- 1. Multiple Choice
What surrounds the Earth and contains gases that are essential for life?
A satellite
The sun
The atmosphere
A ring
- 2. Multiple Choice
Earth is the only planet we know that can support _________.
an atmosphere
life
a moon
a rocky core
- 3. Multiple Choice
Earth is about ________covered with water.
30 percent
50 percent
15 percent
70 percent
- 4. Multiple Choice
Which planet in the solar system is closest to the Sun?
Mars
Mercury
Earth
Venus
- 5. Multiple Choice
Why is it impossible for life to survive on planet Mercury?
Its proximity to the sun
Because it’s far from the sun
It’s very cold from the inside
None of these
- 6. Multiple Choice
1. We call the Earth a blue planet because:
it is blue in colour
two -thirds is covered by water
sky is blue in colour
none of these
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