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Test 4
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Questions 1 - 34
1 Which one of the following is the cause of long-term sea-level change?
Atmospheric disturbance
Change in marine water density
Melting of icebergs
Melting of ice sheets
2 Which one of the following is a continental shelf sea?
North Sea
Arabian sea
Red sea
Mediterranean Sea
3 The ‘Water table’ refers to
The lower limit of the zone of saturation
The upper limit of the zone of saturation
The contact zone of permeable and impermeable rock
Seepage of water into fissures lying below the earth’s surface
4 Which one of the following combination is responsible for higher salinity in ocean water?
High evaporation, high temperature and low rainfall
High evaporation, high temperature and low rainfall
Low evaporation, low temperature and high rainfall
Low evaporation, low temperature and low rainfall
5 The most important fishing grounds of the world are found in the regions where
Warm and cold atmospheric currents meet
Rivers drain out large amounts of freshwater into the sea
Warm and cold oceanic currents meet
Continental shelf is undulating
6 Which one of the following is a warm ocean current?
Labrador
Gulf stream
Kurile
Canary
7 The largest current because of its dark waters is known as the ‘black current’ and that is
California current
Antarctic current
Gulf stream
Kuroshio current
8 The ocean currents transfer heat from
One sea or ocean to another
One coast to another
The surface of the sea to greater depths
Lower to high latitudes
9 The ocean surface currents follow clockwise circulatory paths in the northern parts of the Pacific and Atlantic oceans due to the
Convergence and divergence movements
Coriolis force
Density differences in sea water
Impact of prevailing winds
10 Which of the following Seas has highest salinity in the world?
Mediterranean Sea
Black Sea
Dead Sea
Red Sea
11 When water freeze in the polar seas the salts
Form a layer on top
Remain in the substance water that does not freeze
Sink to the bottom
Partly freeze and partly sink to the bottom
12 Neap tides occur during which of the following phases of the moon?
First quarter only
First and third quarter
Second and third quarter
Fourth quarter only
13 Tides in the sea have stored in them
Gravitational potential energy
A combination of all the three forms of energy
Hydraulic energy
Kinetic energy
14 Tidal range denote the
Rise of sea water and its movement toward the coast
Fall of sea water and its movement toward the sea
Rise and fall of sea water due to gravitational forces
Difference between high and low tide
15 The continent having the largest area in the equatorial belt is
Asia
South America
Africa
North America
16 Which of the following statements with regard to the continental shelf is NOT correct?
Shelves are absent close to plate boundaries
They are highly sedimented
They have abrupt falls towards the continental slopes
They are rich fishing areas
17 Abyssal plains are
Small and unproductive plains caused by the turbidity currents
Vast and flat plains caused by the turbidity currents
Vast but unusually rough terrained plains caused by the turbidity currents
All of the above
18 Which one of the following countries does not border Mediterranean Sea?
Malta
Libya
Italy
Bulgaria
19 The busiest and the most important sea route of the world is
North Pacific Sea Route
North Atlantic Sea Route
South Atlantic Sea Rout
Indian Ocean Route
20 The winter temperatures of north-western Europe are higher than those of eastern Europe in the same latitudinal zone because
It is on the western side of the continent
It is near the sea
It receives only light falls of snow
It lies under westerly winds which blow over the Gulf Stream Drift
21 Coral reefs are formed by
Volcanic rocks
Marine sediments
Chlorine material precipitated from sea water
Tiny colonial marine animals which construct limestone skeleton material
22 Which one of the following is not a permanent lake?
Ox-bow lake
Playa lake
Caldera lake
Cirque lake
23 The longest river is Asia is
River Indus
River Yangtze
River Hwang Ho
River Ganga
24 Which of the following pairs is not correctly matched
Algeria – Niger
Brazil – Amazon
Iraq – Tigris
Myanmar – Irrawad
25 Suez canal joins
Persian Gulf and Arabian Sea
Red Sea and Mediterranean Sea
Mediterranean Sea and Black Sea
Red Sea and Arabian Sea
26 Ozone layer of the Earth’s atmosphere is important for living organisms because it
Prevents entry of ultra-violet rays
Prevents entry of X-ray
Maintains level of oxygen on Earth
Prevents acid rain on Earth
27 Which one of the following statements about the atmosphere is correct?
The atmosphere has definite upper limits but gradually thins until it becomes imperceptible
The atmosphere has no definite upper limits but gradually thins until it becomes imperceptible
The atmosphere has definite upper limits but gradually thickens until it becomes imperceptible
The atmosphere has no definite upper limits but gradually thickens until it becomes imperceptible
28 The equator does not pass through which of the following countries?
Kenya
Mexico
Indonesia
Brazil
29 Which one of the following is a significant contributor to increased levels of atmospheric carbon dioxide?
Refrigerant leakage
Large rice paddies
Aerosol spray can gases
Deforestation
30 Which one of the following layers of atmosphere has high concentration of ions?
Stratosphere
Exosphere
Thermosphere
Troposphere
31 On a clear winter night, earth is cooled by
Conduction
Convection
Radiation
Condensation
32 Horse latitudes lie within the atmospheric pressure belts of
Polar high
Equatorial low
Sub-tropical high
Sub-polar low
33 “Climate is extreme, rainfall is scanty and the people used to be nomadic herders”. This statement best describes which of the following region
African Savannah
Central Asian Steppe
North American Prairi
Siberian Tundra
34 Which one of the following types of clouds is a low level cloud
Cirrus
Cirrocumulus
Stratocumulus
Altocumulus
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