The change in the behavioral as well as the feeding patterns by 2 or more population competing for reducing interspecific competition which is also called as the character displacement is niche shift which is the answer.Hope this would help and this is the right answer.
Zoology would be the scientific term of identifying farm animals I think because it’s the study of animals
The study pushes back the clock on the origin of Earth's water by hundreds of millions of years, to around 4.6 billion years ago, when all the worlds of the inner solar system were still forming. Scientists had suspected that our planet formed dry, with high-energy impacts creating a molten surface on the infant Earth.
Answer: 4.6 billion years.
I think a possible explanation could be evolution
