CAM 18 Test 1 Passage 3 - Conquering earth's space junk probl -

Front

shard

Back

a piece of broken metal, glass, or rock, typically having sharp edges

Front

collision

Back

crash, impact, accident

Front

debris

Back

rubbish, trash, wreckage

Front

orbit

Back

space path, celestial trajectory, revolving route

Front

threat

Back

danger, risk, menace

Front

commercial

Back

business, trade, profit-making

Front

civil

Back

relating to ordinary citizens

Front

department

Back

division, unit, section

Front

amateur

Back

non-professional, hobbyist, enthusiast

Front

sharply

Back

steeply, dramatically, significantly