Questions

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

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

Bad blood

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

At somebody's expense

Read the sentence to find out whether there is any error in it. The error, if any, will be in one part of the sentence. If the given sentence is correct as it is, the answer is ‘No error’. Ignore the errors of punctuation, if any.

The ruling party stood/ for implementation of the bill/ and was ready to/ stake their political existence.

___________ gases absorb long wave (infrared) radiation from the earth and emit it again towards the earth.

Which of the following is a greenhouse gas or a gas, which can deplete the ozone layer?

What is the simplified value of tan (θ/2) + cot (θ/2)?

$$\begin{gathered} ∆ABC is similar to ∆PQR. If ratio of perimeters of ∆ABC and ∆PQR is 1:2 and \\ if PQ = 10 cm then what is the length of AB (in cm)? \end{gathered}$$