Average salinity or ratio of salt as per kilogram of water of ocean is

  1. 35 grams
  2. 55 grams
  3. 32 grams
  4. 42 grams

Headquarter of NASA is located in

  1. South Wales
  2. Berlin
  3. Bern
  4. Washington

World’s first artificial satellite ‘Sputnik 1’ was launched in

  1. 4 October, 1957
  2. 4 May, 1968
  3. 4 April, 1953
  4. 4 September, 1950

An ice mass that covers less than fifty-thousand square kilometers of land area is classified as

  1. glacier erosions
  2. ice cap
  3. ice sheet
  4. ice field

Approx __ % of Indian population is still Agriculturist.

  1. 46%
  2. 50%
  3. 58%
  4. 64%