Answer:
because the suns mass creates a gravitational force that pulls the earth towards it

The greenhouse effect is a natural process that warms the Earth's surface. When the Sun's energy reaches the Earth's atmosphere, some of it is reflected back to space and the rest is absorbed and re-radiated by greenhouse gases. The absorbed energy warms the atmosphere and the surface of the Earth.
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The answer is false i believe
It would be Watson and Crick in Feb 28 1953