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Jugar Froggy Jumps
1. What is the mass of the Earth?
A
3.285 × 10^23 kg
B
5.972 × 10^24 kg
C
6.39 × 10^23 kg
2. How old is the Earth?
A
4.543 billion years
B
4.603 billion years
C
4.503 billion years
3. The atmosphere of Earth is the
A
layer of gases that surrounds the earth
B
layers of earth’s crust
C
both (A) and (B)
4. The atmosphere of earth is retained by
A
Earth’s gravity
B
Earth's core
C
both A and B
5. The study of Earth’s atmosphere and its processes is called
A
aerology
B
geology
C
meteorology