Classify the following events as certain to happen, impossible to happen, may or may not happen:
(a) Getting a number less than 1 on throwing a die.
(b) Getting head when a coin is tossed.
(c) A team winning the match.
(d) Christmas will be on 25 December.
(e) Today moon will not revolve around the earth.
(f) A ball thrown up in the air will fall down after some time.
(a) Impossible to happen
(b) May or may not happen
(c) May or may not happen
(d) Certain to happen
(e) Impossible to happen
(f) Certain to happen
These are classified according to the certainty of each event happening.