UNIVERSE
LIFE IN THE SOLAR SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Mars, because its environment is most similar to Earth’s
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the moon, because it is the closest to Earth
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Venus, because its size is most similar to that of Earth
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Saturn, because its surface gravity is most similar to Earth’s
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Detailed explanation-1: -Venus, a tantalizing target Often called our “sister planet, ‘’ Venus, of similar size and structure to Earth, has critical differences: a surface hot enough to melt lead, a crushingly heavy atmosphere and an extremely volcanic geology.
Detailed explanation-2: -One of Earth’s toughest microbes could survive on Mars, lying dormant beneath the surface, for 280 million years, new research has shown. The findings increase the probability that microbial life could still exist on the Red Planet.
Detailed explanation-3: -The air on mars is thinner than that on Earth. On Earth, 21 percent of the air is oxygen, which is what makes it the ideal place for human life. But on Mars, oxygen makes up 0.13 percent of the air. The majority is carbon dioxide, which is harmful to humans.
Detailed explanation-4: -Among the stunning variety of worlds in our solar system, only Earth is known to host life.
Detailed explanation-5: -The third planet from the sun, Earth is the only place in the known universe confirmed to host life. With a radius of 3, 959 miles, Earth is the fifth largest planet in our solar system, and it’s the only one known for sure to have liquid water on its surface.
Detailed explanation-6: -The surface of Mars today doesn’t seem like the sort of place hospitable to life. It is dry and cold, plunging down as far as-220 degrees Fahrenheit. Its thin atmosphere cannot block ultraviolet radiation from space, which would devastate any known living thing on the surface of the planet.