The creation of the Earth

[wickham]

Was the Earth seeded by asteroids for biological life and was water transported by asteroids or comets or was water a result of a combination of interstellar oxygen and hydrogen gas?

Asteroids that land here seem to be very dry and if comets have water it would take a huge number of them to fill our oceans, glaciers, rivers and atmosphere.

Earth is estimated to be 4.54 billion years old, plus or minus about 50 million years.