Questions

Which is the 1st country to recognise Pfizer-bioNtech's coronavirus vaccine?

In 2013, the first woman to be elected as the President of South Korea is

Who is/was the first U.S President to be impeached twice?

A and B together can finish a work in 30 days. They worked for it for 20 days and then B left the work. The remaining work was done by A alone in 20 days more. In how many days can A alone finish the work?

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'.
The reason for (1)/ his failure is because (2)/ he didn't study at all. (3)/ No Error (4)

Thin filaments are composed of

Which of the following is reared for its fleece/fiber?

Backward bending supply curve belongs to which market?