[ Grammar ]
Land pollution can have huge environmental impact ____ the form of air pollution and soil pollution which in turn can have adverse effect on human health.
A. on
B. in
C. to
D. with

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Grammar › ViewLook at the ________ clouds. It is going to rain.
A. dark
B. busy
C. fresh
D. muddy
Conjunctions and Commas › View
__________ traveling by plane is fast, its expensive and bad for the environment.
A. So
B. Although
C. If
D. And
Grammar › ViewThe simple past of “stand”
A. stod
B. stood
C. stodd
D. sttod
Vocabulary and Grammar › View
. James is planning a weekend trip _______ the countryside with his friends.
A. on
B. in
C. at
D. by
