SOLAR SYSTEM

UNIVERSE

LIFE IN THE SOLAR SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Earth is the only planet that is known to support life. Almost two-thirds of Earth’s surface is covered with water. It has a rocky terrain consisting of deep valleys and high mountains. Earth is neither too far nor too near to the Sun. This ensures that there is enough sunlight to maintain moderate temperatures on Earth. Which three factors would be most important for a body in the Solar System outside of Earth to support life?
A
water, moderate temperatures, and sunlight
B
water, mountains, and soil
C
hydrogen, moderate temperatures, and carbon dioxide
D
carbon dioxide, moderate temperatures, and soil
Explanation: 

Detailed explanation-1: -Earth is the only planet in the universe known to possess life. The planet boasts several million described species, living in habitats ranging from the bottom of the deepest ocean to a few miles up into the atmosphere. Researchers think far more species remain that have yet to be described to science.

Detailed explanation-2: -Evidence points to oceans on other planets and moons, even within our own solar system. But Earth is the only known planet (or moon) to have consistent, stable bodies of liquid water on its surface. In our solar system, Earth orbits around the sun in an area called the habitable zone.

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