Answer: The last 100 years have seen a rapid increase in population due to medical advances and a massive increase in agricultural productivity.
Explanation:
pollution is a substance or a thing that can be very harmful to our environment and like it has poisonous effects the impact that it has in our environment is that it makes our air that we breathe unsanitary because of the pollution which can cause a lot of harmful things to our lungs it also impacts wildlife because pollution in the ocean is also a very harmful thing because it kills sea animals
I think its C but I could be wrong, but I think it's c because water vapor evaporates in the atmosphere due to the heat off the sun and it turns to water again and then the water heats up and turns into vapor.
the correct answer would be earthquakes because it gives us the answer right in the question by saying "a region where tectonic activity is", and in earthquakes they call the parts of the earthquake where it moves the ground apart tectonic plates.
Hope I helped.