Which of the following is not a branch of natural science?
a. life science
b. earth and space science
c. physical science
d. social science

The correct answer is; D. social science

Social science is NOT a branch of natural science.

Social science is the study of society, the relationship among people in a society and how the behavior of people influences the society. Social science is not a branch of natural science. Social science covers a wide range of disciplines such as economics, psychology, management and business studies, sociology, political science, communication studies and linguistics.

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.