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A hypothesis is a tentative statement about the relationship between two or more variables. It is a specific, testable prediction about what you expect to happen in a study.
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We see the Moon because sunlight reflects back to us from its surface. During the course of a month, the Moon orbits once around the Earth. If we could magically look down on our solar system, we would see that the half of the Moon facing the Sun is always lit. But the lit side does not always face the Earth.
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Bc my answer got deleted
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what I don't understand what is the Ctcagt
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Nutrients from fertilizer are harmful to aquatic ecosystems because they cause algae and other plant life to grow rapidly. This causes the oxygen level in the water to drop, which in turn kills fish and other animals in the ecosystem.
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