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The sentence starts in past tense ("finished"), so it should maintain past tense throughout."Submits" is present tense. It should be "submitted".Correct sentence: She finished her project last week and submitted it...
The noble gas used in radiotherapy is
Which metal is extracted from seawater?
The most reactive among the halogens is-
A polymeric substance used to make parachute is
_________is the process in which acids and bases react to form salts and water.
Alum stops bleeding in minor cuts because of
Bronze is an alloy of-
The element used in the manufacture of safety matches is —
Formation of ozone hole is maximum over
The nucleus of an atom consists of-