626: The tendency of a liquid drop to contract and occupy minimum area is due to
(a) viscosity
(b) surface tension
(c) density
(d) vapour pressure
627: A schoolteacher has to select the maximum possible number of different groups of 3 students out of a total of 6 students. In how many groups any particular student will be included?
(a) 8
(b) 12
(c) 6
(d) 10
628: The Swaraj Party was founded by Motilal Nehru in:
(a) 1947
(b) 1952
(c) 1920
(d) 1929
629: With reference to the Agreement at the UNFCCC Meeting in Paris in 2015, which of the following statements is/are correct?
1. The Agreement was signed by all the member countries of the UN and it will go into effect in 2017.
2. The Agreement aims to limit the greenhouse gas emissions so that the rise in average global temperature by the end of this century does not exceed 2 °C or even 1.5 °C above pre-industrial levels.
3. Developed countries acknowledged their historical responsibility in global warming and committed to donate $ 1000 billion a year from 2020 to help developing countries to cope with climate change.
Select the correct answer using the code given below.
(a) 1 and 3 only
(b) 2 only
(c) 2 and 3 only
(d) 1, 2 and 3
630: As per the NSSO 70th Round "Situation Assessment Survey of Agricultural Households", consider the following statements
1. Rajasthan has the highest percentage share of agricultural households among its rural households.
2. Out of the total agricultural households in the country, a little over 60 percent belong to OBCs.
3. In Kerala, a little over 60 percent of agricultural households reported to have received maximum income from sources other than agricultural activities.