What is the average salt content in a liter of seawater?
39 gm
37 gm
35 gm
32 gm
What is sidereal day?
The day on which the sun reaches its maximum distance from the equator
The time during which earth makes a complete revolution on its axis in respect of the fixed star
The day on which the duration of the sunshine and darkness are equal
The day on which the duration of the sunshine is the maximum
What is mixed farming?
Growing rabi as well as kharif crops
Growing several crops
Growing several crops and also rearing animals
Growing sugarcane as well as cereals
What is dodo?
A giant squirrel
An anthropoid ape
A lion-tailed monkey
A large extinct flightless bird
What is correct descending order of South American countries in terms of population?
Brazil, Argentina, Peru, Colombia
Brazil, Peru, Argentina, Colombia
Brazil, Argentine, Colombia, Peru
Brazil, Colombia, Argentina, Peru
What is a seismic zone extending at an angle of about 45° from the base of an ocean trench, down through lithosphere to the asthenosphere known as
Appleton layer
Benioff zone
Conard discontinuity
Convergence zone
What insolation percentage is received by the earth’s surface?
47 percent
51 percent
66 percent
100 percent
/
I,III
I,III,IV
III
III,IV
What are potato ores?
Seed potato grown in Kufri, Himachal Pradesh
Nodules on the sea bed containing a variety of minerals
Iron ore having a large concentration of sulphur
Ores of nuclear minerals
What are geosynclines?
Arched up folds in the strata of the earth’s crust
Major structural down folds in the earth’s crust
Large scale rises in the earth’s crust
Sliding of plate margins inside the earth’s crust
What are equinoxes?
It is the time of year when the difference between the length of days and the length of nights is the largest
They are the points of intersection between the elliptic (the sun’s apparent annual path) and the celestial equator (the equator of the celestial sphere)
They are the days when the sun shines vertically over a tropic
None of the above
What are igloos?
A kind of animal hunted by Kalahari bushmen
A kind of animal domesticated by aboriginal inhabitants of Australia
Mammoth mammals found in the Pacific ocean
A dome-shaped house of a hut, built of blocks of hard snow, in which Eskimos live in summer
What approximately is the percentage of the world population concentrated in Asia?
17 per cent
39 per cent
58 per cent
73 per cent
Wavelength of wave is defined as
The horizontal distance from wave crest to wave crest
The vertical difference between the wave’s trough and crest
Time taken for successive crests to pass a point
None of the above
Western Rajasthan receives scant rainfall because
The Aravallis obstruct the rain bearing winds
It lies in the rain shadow region
It lies in a region too hot to permit precipitation
It lies in the region of rain-bearing winds
Western Ghats are
Mountains
Plateaus
Escarpment of the plateaus
Hills
We get smaller tides or neap tides when
The sun lies in the same straight line as the moon
The sun pulls in the opposite direction, that is at right angles to the moon
There is gravitational pull of the sun and the moon
None of the above
We get big tides or spring tides when
The sun lies in the same straight line as the moon
The sun pulls in the opposite direction, that is, at right angles to the moon
There is gravitational pull of the sun and the moon
None of the above
Watershed is
Topographic barriers which divide drainage basins from each other
Represents all of the stream tributaries that flow to some location along the stream channel
Both (1) and (2)
None of the above
Water usually enters the surface sediments as
Groundwater
Runoff
Precipitation
Rainfall
Water table refers to
Seepage of water into fissures lying below the earth’s surface
The contact zone of permeable and impermeable rocks
The upper limit of the zone of saturation
The lower limit of the zone of saturation
Water enters the stream system by
Direct precipitation in the channel
Runoff
Through flow and ground-water flow
All of the above
Water and the ions it carries as it moves through and around rocks and minerals can further the weathering process. It is called
Solution
Hydrolysis
Carbonation
Reduction
Warsaw is the capital city of
Sweden
Poland
Finland
Norway
Volcanic mountains are also called
Mountains of accumulation
Mountains of denudation
Fold mountains
Residual mountain