(a) Tidal power
(b) Radiant energy
(d) Geothermal heat
The working principle of a washing machine is
(a) Reverse osmosis
The chemical used as a 'fixer' in photography is
(b) Ammonium persulphate
(c) Sodium sulphate
(d) Sodium thiosulphate
Which one of the following is a mixed fertilizer?
(a) Ammonium sulphate
Which one of the following is not an essential micro-nutrient for plants?
Which one of the following is an active component of oil of clove?
Which one of the following has the highest fuel value?
(a) Natural gas
The water pollution in river is measured by the dissolved amount of
When the Indian Muslim League was inducted into the interim government in 1946, Liyaqat Ali Khan was assigned the portfolio of
(c) Forign affairs
The paintings of Abanindranath Tagore are classified as