Salinity is expressed as the amount of salt in grams dissolved in sea
water per
(a) 10 gm (c) 100 gm
(b) 1,000 gm (d) 10,000 gm
Which one of the following is not a minor relief feature in the oceans:
(a) Seamount (c) Oceanic Deep
(b) Atoll (d) Guyot
Reeling of silk is
(a) a process of making silk reels.
(b) spinning of silk fibres.
(c) weaving of silk cloth.
(d) the process of taking silk threads from cocoon.
In which one of the following regions is extensive commercial grain cultivation
not practised?
(a) American Canadian prairies (c)
Pampas of Argentina
(b) European Steppes
(d)
Amazon Basin
The term sericulture is used for
(a) culture of bacteria.
(b) rearing of silkworm.
(c) making silk fabric from silk yarn.
(d) production of sarees.
The average depth of continental slope varies between
(a) 2–20m (c) 20–200m
(b) 200–2,000m (d) 2,000–20,000m
The general process that takes place at a sheep shearing shed is
(a) removal of fleece.
(b) separating hair of different textures.
(c) washing of sheep fibre to remove grease.
(d) rolling of sheep fibre into yarn.
Selective breeding is a process of
(a) selecting the offsprings with desired properties.
(b) selecting the parents with desired properties.
(c) selecting an area for breeding.
(d) selecting fine hair for good quality wool
Identify the element which is not a part of the hydrological cycle
(a) Evaporation (c) Precipitation
(b) Hydration (d) Condensation
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