Hey
Here in Brasil we have a program that involves collecting donated things like toys, clothes and non perishable goods giving the donated items to charities and every R$1000 a acre of trees is planted in the deforested parts of the Amazon
I know you mentioned ‘other than planting trees’ but the process before it is beneficial not only to the people but also the environment overall
Hope it helped
Carbon dioxide (CO2) makes up the vast majority of greenhouse gasemissions from the sector, but smaller amounts of methane (CH4) and nitrous oxide (N2O) are also emitted. These gases are released during the combustion of fossil fuels, such as coal, oil, and natural gas, to produce electricity.
C. deltas are a result of deposition. it looks like a triangle at the mouth of a river
The subject of science is very broad. With that being said, I think there is no official regulatory board that decides the branches of science. Scientific developments are products of joined efforts of different scientists. These scientists could rebuke another's work provided there is evidence. As long as the theory is generally accepted by the scientists and no one rebukes it effectively, then it is a generally accepted fact and everyone adapts it.
Hence, the answer is B.