Earth is a biosphere but other planets are not explain
Answers
Answer: Planets other than earth cannot be called biosphere as life has been found in them yet. It is because they do not have atmosphere as well as water and optimum temperature.
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Earth is one special planet.
It has liquid water, plate tectonics, and an atmosphere that shelters it from the worst of the sun's rays. But many scientists agree our planet's most special feature might just be us.
Though other bodies in our solar system, such as Saturn's moon Titan, seem like they could have once been hospitable to some form of life, and scientists still have hope of eventually digging up microbes beneath the surface of Mars, Earth is still the only world known to support life.