Answer:
C.facilitated diffusion
Explanation:
Because it have some chemicals did you breathe from the person who using cigarettes.
Energy is lost at each Trophic level of a food chain. The more levels then the more energy lost to those at the top.
The Gaia hypothesis, named after the ancient Greek goddess of the Earth, asserts that the Earth and its biological processes function as a single, massive organism. This organism has tightly controlled self-regulatory negative feedback loops that keep the planet's circumstances within life-friendly bounds.
