which is supported and sustained by planets?
Answers
Answer:
life
Explanation:
Answer:
Life is supported and sustained by our planet.
Explanation:
The availability of liquid water is the most important factor that makes a planet habitable, because water is a very effective polar molecule and hence an excellent solvent and facilitator for the complex chemistry of life.
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. Among the stunning variety of worlds in our solar system, only Earth is known to host life.
The standard definition for a habitable planet is one that can sustain life for a significant period of time. As far as researchers know, this requires a planet to have liquid water. To detect this water from space, it must be on the planet's surface. The earliest life forms we know of were microscopic organisms (microbes) that left signals of their presence in rocks about 3.7 billion years old.
There are many factors which make Earth suitable for life are discussed below:
Distance of the Earth from the Sun.
Importance of light on the Earth.
Importance of Earth's Atmosphere.
Importance of Ozone Layer.
Favorable Climatic Condition.
Water.
Force of attraction (Earth's gravitational pull)
Three (Venus, Earth, and Mars) out of eight planets might be able to support life. Based on recent discoveries of planets outside of our Solar System, it was estimated that 1 in 5 planets could exist in the habitable zone of their star: Average lifetime of a planet.
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