Question

In three short sentences, explain the evidence that supports the idea that water on Earth may have come from comets. make it look like a 8th grader made it. keep it simple

Answer 1

Scientists think water on Earth might have come from comets because some comets are made mostly of ice. When these comets crash into Earth, they can bring water with them. Also, the chemical makeup of water in some comets is similar to the ocean water we have here, which supports this idea.