SCIENCE
EARTH SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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energy is reflected back into space.
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new matter forms on the surface of Earth.
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sunlight enters the atmosphere.
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the atmosphere loses hydrogen to space.
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Detailed explanation-1: -It is accepted science that the Earth is an open system for energy. Energy radiates into the Earth’s system, mainly from the sun. Energy is then radiated back into space from the Earth, with the flows being regulated by the Earth’s atmosphere and ozone layer.
Detailed explanation-2: -Barring a large asteroid impact that can inject large swaths of the atmosphere into space, the only gases that regularly escape Earth’s atmosphere today are hydrogen and helium, the lightest elements in the universe. There are several ways hydrogen and helium molecules can wind up on a one-way mission to space.
Detailed explanation-3: -But the Earth’s atmosphere is almost totally lacking in hydrogen because our planet’s gravitational field is not strong enough to retain these extremely light molecules.
Detailed explanation-4: -Around 90 tonnes of the atmosphere disappears into space every day, according to the European Space Agency. This sounds like a lot, but it’s just a tiny part of the atmosphere. “It would probably take more than 150 billion years before the atmosphere disappeared this way, ” says Samset.