In three to five sentences explain the evidence that supports the idea that water on earth may have come from comets

Answer 1

One piece of evidence that supports the idea that water on Earth may have come from comets is the similarity in the isotopic composition of water found on comets and water on Earth. This suggests that the two sources share a common origin. Additionally, the discovery of organic compounds essential for life on comets further strengthens the idea that these icy bodies brought water to Earth. The amount of water present on comets, along with their frequency of impact on Earth, also provides a plausible mechanism for delivering significant amounts of water to our planet over billions of years.