Which of the following is not a calcareous zone?
Pteropod ooze
Diatom Ooze
Globigerina ooze
None of the above
B.
Diatom Ooze
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
LIST I (THEORY OF ORIGIN OF TIDES/CORAL REEFS) |
LIST II (PROPOUNDERS) |
(a) Progressive Wave theory | (i) Darwin |
(b) Equilibrium theory | (ii) W. Whewell |
(c) Subsidence theory | (iii) R.P. Dally |
(d) Glacial Control theory | (iv) Issac Newton |
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
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
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
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
Domestication of plants and animals was started in
Paleolihtic period
Mesolithic period
Neolithic period
Pre-paleolithic period
The origin of the ocean currents is related to
Garvitational force
Winds
Salinity and density
All o the above