Question

Multiple Choice. Choose the letter of the best answer. Write the chosen letter on a
separate sheet of paper.
1. What makes planet Earth different from the other planets in the solar
system?
A. It supports life.
C. The atmosphere holds gases.
B. It is mostly covered in water. D. All of the above
2. Which best describe planet Earth?
A. It has people that live in it.
B. It has soil where trees grow.
C. It has trees that provide oxygen.
D. It has liquid water in the surface.
3. What makes planet Earth a "house" for living organisms?
A. It has comfortable distance from the sun.
B. The atmosphere serves as shields from the sun.
C Only A
D. Both A and B
4. Which is not true in a comparison between Mars and Earth?
A. It has life mechanism.
B. It has water and atmosphere.
C. It has carbon dioxide in the atmosphere.
D. It has atmosphere that supports oxygen.
5. Which must be provided for an organism to survive in planet Earth?
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Answer 1

The questions can be answered as follows:

Explanation:

• 1. The correct option is D. All of the above. The unique features of the planet Earth are that it is the only planet that supports life, it has the right amount of gases and water for sustaining life.
• 2. The correct option is A.  It has people that live in it. Planet Earth is unique because it is the only planet that supports the lives of human beings.
• 3. The correct option is D. Both A and B. The planet Earth supports life because it has just the right amount of distance from the Sun and its atmosphere shields the Earth from harmful sun rays.
• 4. The correct option is A. It has life mechanism. Up till now, no life mechanism has been seen on Mars.