Questions

A ball, thrown vertically upward, rises to a height of 80 m and returns to its original position. The magnitude of its displacement after 7 s of motion will be ____. (take g = 10 m/s2)

Light can travel ___ km in a year.

Permanent settlement was a feature of___________.

__ was a Chinese Buddhist monk, who studied Buddhist Scriptures at Nalanda and is famous for his 17 year long trip to India between AD 627 to 643.

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, a sentence/ a part of the sentence is underlined. Below are given alternatives to the underlined part which may improve the sentence. Choose the correct alternatives. In case no improvement is required, choose "No Improvement" option.

Twelve workers were killed in the conflict between two trade unions.

Backward bending supply curve belongs to which market?

How many versions of each trait will be there in each child as per the rules for the inheritance of traits?