The biosphere is the sum of all ecosystems. Think about the ways water moves through the earth through the water cycle. It moves through water falls, through rain, it may stay in an aquifer, or it might evaporate and stay in the atmosphere humidity.
Answer:
Reject some alternative hypothesis.
The correct answer is: Artificial selection (selective breeding).
Artificial Selection is a form of selection, totally influenced by human, in which traits that should be passed onto offspring are chosen by human. Selective breeding was used long before the genetics was discoverd. Farmers used individuals with beneficial traits, larger in size, with bigger fruit etc.
Hunting is also one type of selective breeding, since the hunters choose the animal and remove it from the population (gene pool), leaving the “weaker” to pass on to the next generation.
That is because water has a high heat capacity, meaning it can absorb large amounts of heat without the temperature being affected.
