Questions

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.

in the first life-form and ______________ through all the

In the following question, a sentence has been given in Direct/Indirect speech. Out of the four alternatives suggested, select the one which best expresses the same sentence in Indirect/Direct speech.

The student said, "I must study hard."

In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.

to impose something unwelcome on

Which gas contributes most to the Greenhouse effect?

Constantan is alloyed from ...... metals.

____________ is a cold desert lying in the Great Himalayas.

In September 2017, who launched ‘Pradhan Mantri LPG Panchayat Yojna’?

The surface area of a sphere is 1386 cm2.  Find its diameter (in cm)