of, relating to, or containing acid
The acid mixture is deadly if swallowed.
cause
to make something happen, usually something bad
The storm caused a blackout in many towns.
chemical
a substance of distinct molecular form
Nerve gases created for use during warfare are dangerous manmade chemicals. They are now banned in most countries.
face
to confront directly
I eventually had to face my fear of flying.
lean
to bow, angle toward
She leaned forward and whispered into my ear.
major
chief; principal; main
Fresh fruits are a major source of vitamin C.
pollution
harmful substances in the air, soil, and water
Cities generally have more pollution than rural areas.
relatively
in a relative manner
Students from wealthier families do relatively better than students from low income families.
replace
to put a new thing or person in the place of another
The sofa had a hole in the middle, so it needed to be replaced.
sidewalk
a path with a hard surface beside one or both sides of a road, that people walk on
I like to keep the sidewalk in front of my house clear so people can pass by easily.
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