Airpollutionresultsinstrongergreenhouseeffectwhichleadstoglobalwarming.Wemusttakemeasurestopreventpollutionbeforeitistoolate.A.generallyB.gradually

Question

 Air pollution results in stronger greenhouse effect which __________ leads to global warming. We must take measures to prevent pollution before it is too late.

A. generally          B. gradually               C. gently             D. usually

Answer 1

B