Questions

Salination of soil is caused by

The ozone layer protects us from harmful _______________ rays of the sun.

In a hydrogen atom, an electron moves in an orbit of radius 5.0 x 10-11 m with a speed of 2.2 x 106 m/s. What is the equivalent current? (Electronic charge = 1.6 x10-19 C)

The name of first mammal clone sheep is

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.

I am better(A)/adapted to the(B)/climate than you.(C)/No error(D)

Algae belongs to which of the following levels of the ecosystem?

Which of the following is NOT a radioactive element?

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.

At large