Answer
a. science
b. science
c. not science
d. not science
e. not science
Work Step by Step
a. Meteorology is science because it is the study of the natural environment.
b. Astrophysics is science because it, too, is the study of the natural environment.
c. Economics is not science because study of money/monetary systems does not involve the natural environment.
d. Astrology is not science because it is the study of the natural environment but it is studied in a non-scientific way, that being prediction based on position of stars.
e. Political science is not science because it does not involve study the natural environment; it is the study of politics.
