Questions

The question below consists of a set of labelled sentences. These sentences, when properly sequenced form a coherent paragraph. Select the most logical order of sentences from among the options.

P: The depletion of organic nutrients in the soil has reached alarming proportions, thanks to indiscriminate use of chemical fertiliser in Green Revolution areas.
Q: As against an acceptable level of ‘soil organic carbon’ of well over 5 percent, soils in Punjab are said to have levels far below 1 percent.
R: Besides, 5.3 billion tonnes of soil is eroded annually, at a rate of 16.4 tonnes/hectare.
S: The nutrient imbalance has been skewed by the overuse of urea (N) vis-a-vis phosphatic (P in chemical parlance) and potassic (K) fertiliser.

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'.

When Albert stayed at the African jungle (A) / he chose to put up with many inconveniences such as (B) / wild animals and poisionous insects. (C)/ No Error (D)

Who was the Chinese pilgrim who visited India during the Gupta period?

Which one of the following statements is not correct?

What is the action of dry HCl gas on dry litmus paper?

Atomic numbers of four elements are as follows : F(9), P(15), Cl(17), Ar(18). Which of the following two elements would be chemically similar?

The centre of the reflecting surface of a spherical mirror is a point called the ___.

Calculate the work done by the force of gravity when a satellite moves in an orbit of radius 40,000 km around the earth.