We think no the isotopic makeup of cometary water would not seem to match that found in the oceans. Latest thinking is that Earth's water may have been delivered from the asteroid belt (by asteroids rather than comets). However, please note that there is no final consensus on this yet and other people postulate that Earth's water was there form the start and not delivered later. Whichever way, Earth got its water early on.
From comets
rain and it also comes from comets that crash on the earth that are frosen water
earth the comets to go
I comes from everywhere, because the water cycle enables water to move everywhere by the processes of evaporation, precipitation, sublimation, condensation and flow. Originally almost all the water on earth came from comets, and comets still contribute water to the earth every day.
I comes from everywhere, because the water cycle enables water to move everywhere by the processes of evaporation, precipitation, sublimation, condensation and flow. Originally almost all the water on earth came from comets, and comets still contribute water to the earth every day.
I comes from everywhere, because the water cycle enables water to move everywhere by the processes of evaporation, precipitation, sublimation, condensation and flow. Originally almost all the water on earth came from comets, and comets still contribute water to the earth every day.
Water is not produced. It is believed that all of the water on earth came from comets and other blocks of ice landing on earth from the solar system.
Comets.
It is comets.
Nobody truly knows. It is likely that - as is the case for the Earth - any water was 'delivered' there by comets.
Although comets contain water in the form of ice, scientists do not consider them a significant source of Earth's ocean water. Instead, the majority of Earth's water is thought to have originated from within the planet during its formation and through volcanic outgassing over time. Comets may have played a role in enriching Earth's water with isotopic compositions different from those found in the planet's interior.
1. Water 2. Heat 3. Matter