UPSC Previous Year Questions: CSP 2021

Patrick_janesaid

163)

Epfo 2017

upsc2020said

upsc2020said

162. 

A

@Anjali8 

Patrick_janesaid

172)

Patrick_janesaid

174)

upsc2020said

222. Which one of the following elements is essential for the formation of chlorophyll in green plants?

a) Calcium

b) Iron

c) Magnesium

d) Potassium

upsc2020said

Which of the following statements with regard to the creation of a new state or alteration of boundaries of states is/are correct?

1. An amendment has to be moved in the Parliament under Article 368 of the Constitution.

2. Ratification by one half of the states is necessary after the amendment is made by the Parliament.

3. The legislation can be passed by a simple majority of both Houses of Parliament.

Select the correct answer:

a. 2 only

b. 1 and 3 only

c. 3 only

d. 2 and 3 only

upsc2020said

An antibiotic is not useful against virus whereas a vaccine is. Which one of the following is the most appropriate reason for this?

A. An antibiotic can break RNA only whereas virus has DNA.

B. An antibiotic is a carbohydrate in its chemical nature, whereas a vaccine is a protein, which works well to kill a virus.

C. Only vaccine can break the genetic material of a virus.

D. A virus does not use biochemical pathways which can be blocked by an antibiotic. But a vaccine can boost an immune system to fight the virus.