The answer, I believe, would be C) A decrease in the wolf population - because the prey decreases, fewer wolves will be able to find food, which will lead to a decrease in their population.
Its called as Spawning...Hope this helps
One of the use of Agriculture is that It bears no effect on the environment
unlike any other industry , If it done right, Agriculture will leave no side effects to the environment. It basically just let the nature do it's thing and we harvest the result.
this answer is B. full landfill and another answer is Agricultural runoff (apex)
Coal is considered a non renewable source because the earth cannot replenish it.