Uniqueness of Earth: Quiz

Uniqueness of Earth

Multiple Choice

One of the characteristics that make earth a unique planet is it location in the solar system. What is a significant contribution of the fact that Jupiter is Earth’s neighbor in the solar system?

• A. Its strong gravity energizes the earth

• B. Its strong gravity attracts Kuiper belts

• C. Its strong gravity balances the earth in its orbit

• D. Its strong gravity attracts space debris away from the Earth

Multiple Choice

2. The earth is able to sustain life for millions of years because of the presence of this shield that protects the life forms from harmful solar radiation.

• A. Aurora

• B. Atmosphere

• C. Magnetic field

• D. North and south pole

Multiple Choice

3. What will happen if the earth is bigger than its current size?

• A. It will not be able to sustain life

• B. It will not have a moon on its orbit

• C. It will move farther away from the sun

• D. It will attract materials more strongly towards its center

Multiple Choice

4. Unlike other planets in the solar system, earth holds an atmosphere which has an essential function to life. What substance in the stratosphere is responsible for absorbing high-energy radiation from the sun?

• A. Ozone

• B. Methane

• C. Carbon dioxide

• D. Diatomic oxygen

Multiple Choice

5.Oceans occupy what percent of earth’s water?

• A. 65%

• B. 71%

• C. 80%

• D. 98%