Trees require regularly trimming because A.
it protects them from harmful insects.
B.
without it roots will continue to expand indefinitely.
C.
it prevents them from becoming too heavy and falling over.
D.
It generates additional revenue for the landscaping industry.

b

explanation:

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.

it's false. hope i .