The water purification method ？ -remove all subtances
（）
-only removes suspended impurities
（）
-use heat
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-add chlorine water
（）

Air is made of gaseous elements and compounds that interact but are not bound to each other. so air can be considered a

1which legislation enacted in the south after the civil war promoted "separate but equal" facilities for different races? a. fourteenth amendment b. jim crow laws c. emancipation proclamation d. fifteenth amendment

What's jordan? is jordan a nice country?