Which one of the following scholars is the proponent of the Turbidity Current Theory on the origin of Submarine Canyons ?
Salin
Gregory
Daly
Harry Hen
C.
Daly
Submarine turbidity current is the high-density current which is formed by the movement of sand & sediments covering continental shelf. This movement is induced by tsunami, earthquakes etc. The submarine canyon gets eroded over long time period on shelf and once reaches he ocean floor , the speed of turbidity currents slows down.
Which one of the following marine features is not supporting for speedy growth of coral reefs ?
Around a lagoon
Near to small channel
Close to island shore
Guyots and seamounts
|
LIST I (FORCE) |
LIST II (SOURCE) |
| (a) Coriolis | (i) Earth's gravity |
| (b) Tidal | (ii) Topographic differences |
| (c) Friction | (iii) Static state |
| (d) Resisting | (iv) Earth's rotation |
(a)-(iv) , (b)-(ii) , (c)-(iii) , (d)-(i)
(a)-(iv) , (b)-(iii) , (c)-(ii) , (d)-(i)
(a)-(iv) , (b)-(i) , (c)-(iii) , (d)-(ii)
(a)-(iv) , (b)-(i) , (c)-(ii) , (d)-(iii)
Which one of the following coasts has narrow continental shelf ?
Northern Australia
China
Canada
Western coast of South America
|
LIST I (Ocean Trench) |
LIST II (Depth in meters) |
| (a) Tonga | (i) 7760 |
| (b) Kuril Kamchatka | (ii) 10540 |
| (c) Philippine | (iii) 10880 |
| (d) Romanche | (iv) 10500 |
(a)-(i) , (b)-(ii) , (c)-(iii) , (d)-(iv)
(a)-(iii) , (b)-(iv) , (c)-(ii) , (d)-(i)
(a)-(iv) , (b)-(iii) , (c)-(i) , (d)-(ii)
(a)-(ii) , (b)-(i) , (c)-(iv) , (d)-(iii)
|
LIST I (Mid-Oceanic Ridge) |
LIST II (Ocean) |
| (a) Carlsberg Ridge | (i) Pacific Ocean |
| (b) Mid-Atlantic Ridge | (ii) Antarctic Ocean |
| (c) East Pacific Ridge | (iii) Indian Ocean |
| (d) Antarctic Ridge | (iv) Atlantic Ocean |
(a)-(iii) , (b)-(ii) , (c)-(i) , (d)-(iv)
(a)-(ii) , (b)-(iv) , (c)-(iii) , (d)-(i)
(a)-(iii) , (b)-(i) , (c)-(ii) , (d)-(iv)
(a)-(iii) , (b)-(iv) , (c)-(i) , (d)-(ii)
Which on of the followings is the correct average range of the worlwide variations in sea water salinity ?
34% to 37%
27% to 29%
37% to 39%
21% to 26%
ASSERTION (A) : In low latitudes, sea water in th deep cold zone does not freeze.
REASON (R) : The deep sea water does not remain under intense pressure because of its high salinity.
Both (A) and (R) are true and (R) is the correct explanation of (A).
Both (A) and (R) are true , but (R) is not correct explanation of (A).
(A) is true , but (R) is false.
(A) is false , but (R) is true
Which one of the following sequences is the correct form in a littoral zone from land to sea ?
Backshore , Foreshore , Nearshore , Offshore
Foreshore , Backshore , Nearshore , Offshore
Offshore, Nearshore , Foreshore , Backshore
Nearshore , Offshore , Backshore , Foreshore
