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"Hit the ground running" means to start something successfully without delays, and "Hit the nail on the head" means doing something exactly right, both of which fit the scenario of a successful presentation. "Pushed the envelope" means going beyond usual limits, which doesn't apply here.
Formation of ozone hole is maximum over
The important ore of aluminium is-
The gas used for filling weather balloons is-
______is the process in which acids and bases react to form salts and water
The fuel that is used in modern submarines is -
Milk tastes sour when kept in the open for sometimes due to the formation of-
The noble gas used in radiotherapy is
_________is the process in which acids and bases react to form salts and water.
A polymeric substance used to make parachute is
The chemical name of'Common salt’