Question

what is science??? how many branches have???give me answer with full definition.

Answer 1

science is a systematic enterprise that builds and organises knowledge in the form of testable explanations and predictions about the universe.
branches of science are commonly divided into 3 major groups
natural science : ( the study of natural phenomena including cosmological geological chemical and biological factors of the universe)
formal sciences : ( the study of mathematics and logic)
social science : ( the study of human behaviour and societies)

Answer 2

science is a subject they deals about physical, chemical , biological nature.