He did not know even A the name a the scientist B who discovered C the laws of the earth gravitation...........

English ( Master) Nouns

Which part of the sentence has error ? If there is no error mark 'E' As your Answer.

He did not know even (A) / the name a the scientist (B) / who discovered (C) / the laws of the earth gravitational force. (D) / No Error. (E)

Answer(D) , correct is “ earth’s gravitational force” remember the dignified natural objects takes apostrophe ‘s

The earth’s surface

The sun’s rays

Heaven’s will

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