Consider the following statements:
1.Longitude determine only the hour of the day not the date.
2.Equator is the longest latitude of the earth.
3.Longitude determine the date and the hour of the day.
4.Greenwich line passes through the Bering strait between Alaska and Siberia.
Which one of the above statements is/are correct?
1 and 2
B.1, 3 and 4
C.3 and 4
D.1, 2 and 3
Consider the following statements in regard to the properties (temperature, density and salinity) of oceanic water:
1.Density of seawater and temperature are inversely proportional whereas salinity is directly positively related to seawater density on an average.
2.The density of seawater increases sharply with increasing depth between 200 m and 1000 m in low latitude areas but in high latitude areas there is no change in sea water density whereas salinity decreases with increasing depth between 200 m and 1000 m in the low latitudes but increases with increasing depth in high latitudes.
Which of the above statements is/are true?
1 only
B.2 only
C.Both
D.None
Which of the following conditions are true for the growth of coral polyps?
1.Corals are found mainly in tropical oceans and seas because they require high mean annual temperature for their survival.
2.Corals mainly live in deeper waters where insolation is minimum, as they are depended on algae for food.
3.Very high proportions of oceanic salinity is injurious for the growth of coral polyps because such waters contain little amount of calcium carbonates.
Codes:
1 and 2
B.1 and 3
C.2 and 3
D.1, 2 and 3
Ocean gyres are large system of circular ocean currents formed by global wind patterns and forces created by Earth's rotation. Which of the following statements regarding ocean gyres is/are correct?
1.The Indian Ocean Gyre is composed of two major currents: the South Equatorial Current, and the West Australian Current.
2.The currents that compose the North Atlantic Gyre include the Gulf Stream in the west, the North Atlantic Current in the north, the Canary Current in the east, and the Atlantic North Equatorial Current in the south.
Codes:
Only 1
B.Only 2
C.Both
D.None
There are several different kinds of faults. These faults are named according to the type of stress that acts on the rock and by the nature of the movement of the rock blocks either side of the fault plane. Which of the following statements are correct in this regard?
1.Reverse faults occur when tensional forces act in opposite directions.
2.Normal faults develop when compressional forces exist.
3.A graben fault is produced when tensional stresses result in the subsidence of a block of rock.
Which of the above statements is/are correct?
Only 1
B.Only 2
C.Only 3
D.All
Incident energy loss due to reflection is termed as albedo. Which of the following statements are true regarding the albedo effect?
1.Higher the angle of incidence of solar rays higher is the albedo.
2.Calm water body has lower albedo than moving water.
3.Albedo of coniferous forest is 5 to 10 per cent higher than broadleaf deciduous forests.
Codes:
1 and 2
B.1 and 3
C.2 and 3
D.All
Consider the following statements regarding the Earth:
1. The Earth rotates from the west towards the east.
2. As viewed from the North Star or polestar Polaris, the Earth turns counter-clockwise.
3. The Earth rotates from the east towards the west.
4. As viewed from the North Star or polestar Polaris, the Earth turns clockwise.
Which of the above statements are correct?
1 and 2
B.2 and 3
C.3 and 4
D.1 and 4
Weathering is action of elements of weather and climate over earth materials. Consider the following statements with respect to the different types of weathering:
1.Chemical weathering is when gases dissolve in rain to form weak acids that corrode rocks such as granite and gneiss.
2.Biological weathering is when Lichens grow on rocks and release acids to dissolve the minerals in them.
3.Physical weathering is when continual freeze and thaw cycle causes rocks to splinter and break into small pieces.
Which of the above statements is/are incorrect?
Only 1
B.Only 3
C.1 and 2
D.2 and 3
Which of the following are the main reasons for the occurrence of floods?
1.Storm surge
2.High intensity rainfall for a considerably longer time period.
3.Presence of eroded material in the water due to higher rate of soil erosion.
Select the correct answer from the codes given below:
Codes:
Only 1
B.Only 2
C.1 and 3
D.All
Which of the following forms the best examples of igneous rocks?
Granite, Gneiss, Pumice Stone,
B.Basalt, Serpentine, Gabbro
C.Pumice Stone, Granite, Gabbro,
D.Gneiss, Serpentine, Granite
Which of the following statements are correct about the ocean trenches?
1.Ocean trenches are long, narrow, steep-sided depressions found on the ocean floor.
2. Ocean trenches mark the transition between continents and ocean basins.
3. Trenches are found in the tectonic areas.
Codes:
1 and 2
B.2 and 3
C.1 and 3
D.All
Which of the followings are the harmful effects of Ozone-layer depletion?
1. It increases the susceptibility of skin-cancer.
2. It inhibits photosynthesis in plants.
3. It affects temperature gradient levels in the atmosphere.
Codes:
1 and 2
B.2 and 3
C.1 and 3
D.All
Which of the following examples of regional variations in climate due to ocean currents is/are correct?
1.Gulf Stream makes northwest Europe much more temperate than any other region at the same latitude.
2.Lima (Peru) has a warmer climate than the tropical latitudes in which the area is located, due to the effect of the Humboldt Current.
Which of the above statements is/are true?
Only 1
B.Only 2
C.Both
D.None
Consider the following statements regarding the temperature of the earth:
1.The highest absolute temperatures are observed near the tropics whereas the highest mean annual temperature is observed close to equator.
2.The annual range of temperature is lowest over poles.
3.The thermal equator shifts northwards to a greater extent during summers in the northern hemisphere as compared to its southward shift.
Which of the above statements is/are correct?
Only 1
B.1 and 3
C.2 and 3
D.1, 2 and 3
Consider the following statements about the lithosphere:
1.The lithosphere is the upper part of the earth and contains rocks, minerals.
2.The lithosphere does not include the crust and the solid portion of the mantle.
3.Only eight elements oxygen, silicon, aluminum, iron, calcium, sodium, potassium, and magnesium constitute more than 99% of its volume.
Which of the above statements are correct?
1 and 2
B.2 and 3
C.1 and 3
D.All
Consider the following statements about the Ozone layer:
1. Ozone layer is a thin layer in the atmosphere made up of oxygen atoms (O3) that absorb harmful ultraviolet radiation (UV-B) from reaching the earth's surface.
2. Main reason for ozone depletion is chemicals released into the atmosphere like chlorofluorocarbons (CFCs), carbon tetraflouride, and methyl chloroforms, etc.
3. Natural phenomenon like volcano eruptions, El-Nina and La-Nina, etc. do not affect the ozone layer.
Which of the above statements is/are correct?
1 and 2
B.2 and 3
C.1 and 3
D.All
Consider the following statements regarding Jet Stream:
1.Jet Stream develops just below the tropopause over areas of very steep pressure gradient on the surface.
2.The flow of air in a Jet Stream follows the principles of geostrophic winds, i.e., they blow parallel to the isobars and keep the low pressure zone to their left.
Which of the above statements is/are correct?
Only 1
B.Only 2
C.Both
D.None
Which of the following conditions in terms of variations in the physical properties of the ocean are true for generation of ocean currents as surface currents?
1.Ocean currents are generated from areas of lower temperature to higher temperature.
2.Ocean currents are generated from the areas of less salinity to the areas of high salinity.
3.Ocean currents are generated from the areas of low density to areas of high density.
Codes:
1 and 2
B.1 and 3
C.2 and 3
D.1, 2 and 3
Consider the following statements regarding temperate cyclones:
1.Temperate cyclones are formed in the regions extending between 35 degree to 65 degree latitudes in both hemisphere.
2.It is formed due to convergence of two contrasting air masses.
3.The centre of the cyclone is characterized by the formation of eye.
Which of the above statements regarding temperate cyclones are correct?
1 and 2
B.1 and 3
C.2 and 3
D.All
Which of the following statements are true related to Oceanic lithosphere?
1.Oceanic lithosphere consists mainly of mafic crust and ultramafic mantle.
2.Oceanic lithosphere is less dense as compared to the continental lithosphere.
3.Oceanic lithosphere thickens as it ages and moves away from the mid-ocean ridge.
Select the correct answer from the codes given below:
Codes:
1 and 3
B.2 and 3
C.1 and 2
D.All
Which of the following statements are true with the context of tidal bore?
1.Tidal bore is a high tidal wave moving upstream in the mouth of a river.
2.Tidal bore can be formed of high tides resulting from seismic activity.
3.The tidal-bore affected estuaries are the rich feeding zones and breeding grounds of several forms of wildlife.
Codes:
1 and 2
B.1 and 3
C.2 and 3
D.All
In the temperature inversion, the temperature of the atmosphere increases with altitude in contrast to the normal decrease with altitude. Which of the following are the impacts of temperature inversion?
1.It leads to formation of thunderstorms.
2.It traps the pollution close to the ground.
3.It leads to formation of frost.
Codes:
1 and 2
B.2 and 3
C.1 and 3
D.All
Match the following lakes of India with their respective States:
Lake States
1.Tso Moriri A. Himachal Pradesh
2.Ashtamudi Lake B. Manipur
3. Loktak Lake C. Kerala
4.Macchial Lake D. Jammu and Kashmir
Codes:
1-D; 2-C; 3-B; 4-A
B.1-D; 2-B; 3-C; 4-A
C.1-A; 2-B; 3-C; 4-D
D.1-A; 2-C; 3-B; 4-D
Which of the following industries get affected due to drought?
1.Agro based industries
2.Horticulture sector
3.Dairying
4.Energy production sector
Codes:
1, 2 and 3
B.2, 3 and 4
C.1 and 2
D.All
The Gulf of Aden, the extension of the Indian Ocean located between Africa and Asia forms a natural sea link between:
Red Sea and Suez Canal
B.Red Sea and Arabian Sea
C.Suez Canal and Arabian Sea
D.Persian Gulf and Red Sea
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