Questions

Which of the following is an example of social facilitation?

Find the potential energy gained by a body of mass 25 kg, if it is raised by 5 m. (use g = 10 m/s2)

Which of the following devices converts Chemical energy into Electrical energy?

Dakshin Gangotri is a research base station set up by Indian scientists. Where is it located?

The right to form associations and unions is a right

In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

A brain and nervous system that are poorly developed or insufficiently nourished means low grade of ______________ in our mental processes, just as a poorly constructed or wrongly adjusted motor means loss of power in applying the electric current to its work. We will, __________, look upon the mind and the brain as counterparts of ___________ other, each performing activities which correspond to activities in the other, ________ inextricably bound together at least so far as this life is concerned, and each getting its _______________ by its union with the other. This view will lend interest to a brief study of the brain and nervous system.

nourished means low grade of ______________ in our mental processes

In the following question, out of the given four alternatives, select the one which best expresses the meaning of the given word.

Repugnance

In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

_______________ the course of the development of different life-forms heredity—which, in plain English, is unconscious memory generated in the first life-form and ______________ through all the different species—is the sole factor in the ____________ of the parent properties; while adaptation to surrounding conditions and circumstances, natural selection in the struggle _____________ existence, and partner selection in the struggle of the males for ____________ are the principal factors in the differentiation of species.

sole factor in the ____________ of the parent properties