The average difference in the water level between high tide and low tide at a place is referred to as :

• Tidal bore

• Tidal period

• Tidal range

• Tidal wave

82.

Domestication of plants and animals was started in

• Paleolihtic period

• Mesolithic period

• Neolithic period

• Pre-paleolithic period

Falt topped sea mounts are known as

• Shoals

• Reefs 

• Guyots

• Banks

The origin of the ocean currents is related to

• Garvitational force

• Winds

• Salinity and density

• All o the above

Schaefer was in favour of

• Exceptionalism

• Idiography

• Areal differentiation

• Scientific genralization

Which of the following is not a calcareous zone?

• Pteropod ooze

• Diatom Ooze

• Globigerina ooze

• None of the above

The north equatorial current in the northern Atlantic ocean and south equatorial curren in the Southern Atlantic ocean are caused by

• Centrifugal force at the equator

• Trade winds

• Coriolis force

• Centripetal force towrads the poles

• a-i , b-iv , c-ii , d-iii

• a-ii , b-i , c-iii , d-iv

• a-ii , b-iv , c-i , d-iii

• a-iii , b-iv , c-i , d-ii

ASSERTION (A) : The sea water is more saline in tropical areas.

REASON (R) : Salinity of seawater is dependent on temperature and fresh-water mixing.

• (A) is true , (R) is false.

• (A) is false , but (R) is true .

• Both (A) and (R) are true

• Both (A) and (R) are wrong

Which one of the following is different from the other three on the basis of their location ?

• Canaries current

• Benguala current

• Guinea current

• Labrador current