CONTINOUS variation occurs in a population due to:

Select the option that can be used as a one-word substitute for the given group of words.

One who collects coins

In the questions given below out of five alternatives, choose the one which can be substituted for the given word/sentence.

The loop of rope with a running knot used to hang a person.

Select the most appropriate meaning of the highlighted phrase.

The loss of all stakes came like a bolt from the blue.

Select the most appropriate option that can substitute the underlined segment in the  given sentence.

I have been waiting from two hours.

A government in which all the powers are concentrated on the hands of officers?

A person who is not skillful at a job or other activity