Vanessa has decided to attend college after high school rather than getting a
job. What is her opportunity cost of attending college?
her tuition, books, and fees
O
wages she could have earned at a job
O
her education gained by being in school
O
the sum of all decisions she made during that time

the correct answer is c

it is very hard for the climatologists to precisely predict how will the global temperatures be changing so there's lots of models, some of which differ significantly, this is due to multiple factors, and probably the most important is the human activity.

humans have been a key factor in climate change around the globe since the start of the industrial revolution, and in the past few decades the consequences are becoming more obvious. there's lots of emission of pollutants in the atmosphere as well as changing the environment on the surface itself, so it's really hard to predict how will that go in the future because there's some countries that are reducing the damage and are going towards green energy, while others are stubbornly continuing with pollution and damages to the environment.