GK
THE UNIVERSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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By forcing Earth to continuously spin on its axis, which contributes to day and night
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By causing changes in the distance between Earth and the sun, which contributes to the seasons
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By keeping water and gases in the atmosphere close to Earth’s surface, which contributes to life processes
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By preventing meteors and comets from hitting Earth’s surface, which protects living organisms from space fragments
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Detailed explanation-1: -Not only does it contain the oxygen we need to live, but it also protects us from harmful ultraviolet solar radiation. It creates the pressure without which liquid water couldn’t exist on our planet’s surface. And it warms our planet and keeps temperatures habitable for our living Earth.
Detailed explanation-2: -A special planet: the habitable Earth What makes the Earth habitable? It is the right distance from the Sun, it is protected from harmful solar radiation by its magnetic field, it is kept warm by an insulating atmosphere, and it has the right chemical ingredients for life, including water and carbon.
Detailed explanation-3: -Nitrogen, oxygen and carbon dioxide have very important associations with life: Oxygen is exchanged between the atmosphere and life forms through the processes of photosynthesis and respiration.