General Knowledge Questions

To hear a distinct echo the time interval between the original sound and the reflected sound must be at least

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.

natural selection in the struggle _____________ existence, and partner selection

In the following question, out of the four alternatives, select the word similar in meaning to the word given.

Drivel

_________ affect the rate of humus formation of soil.

The property of metals by which they can be beaten into thin sheets is called _______________.

What is Damodar Valley Corporation ?

The land forms formed by wave erosion is

Sextant is an instrument used in which of the following ?