Non-renewable natural resources like oil and natural gas take a very long time to form. that is one reason for the building of windmill farms that produce electricity from the wind''s movement. what is another reason? a) wind energy is more efficient than solar energy. b) the energy produced on a windmill farm is much cheaper. c) the energy produced on a windmill farm is much more expensive. d) windmill farms produce energy without producing as much pollution.

brain development. a child's brain undergoes an amazing period of development from birth to three—producing more than a million neural connections each second. the development of the brain is influenced by many factors, including a child's relationships, experiences and environment.

explanation:

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.