Questions

Which gas contributes most to the Greenhouse effect?

Which of the following phrases (i), (ii), and (iii) given below each sentence should replace the phrase printed in bold letters to make the sentence grammatically correct? Choose the best option among the five given alternatives that reflect the correct use of phrase in the context of the grammatically correct sentence. If the sentence is correct as it is, mark (E) i.e., "No correction required" as the answer.
The trees shed his leaves every time autumn approaches but a healthy tree always gets its leaves back in the spring, which explains the point that fighting spirit is enough to keep one afloat.
i. Has shed their leaves every time autumn approaches
ii. shed their leaves every time autumn approaches
iii. shed its leaves every time autumn approaches

If price of an article decreases from Rs P1 to Rs 190, when quantity demanded increases from 5000 units to 5200 units, and if point elasticity of demand is -0.8 find P1?

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

Raucous

Which of the following function is performed by the kidneys in the human body?

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

On a wing and a prayer

A sentence has been given in Active/Passive Voice. Out of the four given alternatives, select the one which best expresses the same sentence in Passive/Active Voice.

He refused them donation.

If a+1a2=3,then the value of a2+1a2 will be