GK
THE UNIVERSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a solid surface
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an atmosphere
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carbon
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liquid water
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Detailed explanation-1: -Earth has a very hospitable temperature and mix of chemicals that have made life abundant here. Most notably, Earth is unique in that most of our planet is covered in liquid water, since the temperature allows liquid water to exist for extended periods of time.
Detailed explanation-2: -Without water, life simply cannot be sustained. It is the fluid that lubricates the workings of the cell, transporting the materials and molecular machinery from one place to another and facilitating the chemical reactions that keep us going.
Detailed explanation-3: -Earth is the only planet in our solar system’s habitable zone. Mercury and Venus are not in the habitable zone because they are too close to the Sun to harbor liquid water.