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Question 1 of 5
1. Question
Consider the following statements regarding Anticyclones.
- Anticyclone is a region where the atmospheric pressure is high compared with that of adjacent areas.
- Their extent is always small.
- In the northern hemisphere the general wind circulation is anti-clockwise round the anticyclone.
Which of the above statements is/are correct?
Correct
Solution: c)
Anticyclone is a region where the atmospheric pressure is high compared with that of adjacent areas. In the northern hemisphere the general wind circulation is clockwise round the anticyclone, while in the southern hemisphere it is anticlockwise. The extents are generally large and the effects are also pronounced.
Incorrect
Solution: c)
Anticyclone is a region where the atmospheric pressure is high compared with that of adjacent areas. In the northern hemisphere the general wind circulation is clockwise round the anticyclone, while in the southern hemisphere it is anticlockwise. The extents are generally large and the effects are also pronounced.
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Question 2 of 5
2. Question
Tidal currents are
Correct
Solution: d)
Tidal currents are the tides which are channelled between islands, bays and estuaries. Tidal current has significance in power generation.
Incorrect
Solution: d)
Tidal currents are the tides which are channelled between islands, bays and estuaries. Tidal current has significance in power generation.
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Question 3 of 5
3. Question
Consider the following statements:
- Area of Pacific Ocean is almost equal to area of all other oceans combined.
- More diversity of landforms can be observed in oceans than continents.
Which of the above statements is/are incorrect?
Correct
Solution: a)
Although Pacific Ocean is the largest ocean than other oceans, its area is far lesser than all other oceans area combined.
Continental slope, Guyots, Trenches and other landforms can be observed in the ocean which is far diverse than the continents.
Incorrect
Solution: a)
Although Pacific Ocean is the largest ocean than other oceans, its area is far lesser than all other oceans area combined.
Continental slope, Guyots, Trenches and other landforms can be observed in the ocean which is far diverse than the continents.
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Question 4 of 5
4. Question
Consider the following statements regarding Jet Streams.
- Jet streams are narrow bands of strong winds that flow over thousands of kilometres predominantly from east to west.
- Major jet streams are found near the upper levels of the atmosphere, around 9 to 16 km from the earth’s surface.
- In India, the Tropical jet stream influences the formation and duration of the summer monsoon.
- Jet streams can aid in the faster travelling of Aircrafts.
Which of the above statements is/are correct?
Correct
Solution: c)
Jet streams are narrow bands of strong winds that flow over thousands of kilometres from west to east. Major jet streams are found near the upper levels of the atmosphere, around 9 to 16 km from the earth’s surface, and can reach speeds of over 320 kph.
The jet streams shift to the north or south depending on the season. During winters, the wind current is the strongest. They are also closer to the Equator during winter.
The major jet streams are the Polar Front, Subtropical, and Tropical jet streams. In India, the Tropical jet stream influences the formation and duration of the summer monsoon.
Most commercial planes fly at the jet stream level, and a strong jet stream can provide a potent tailwind to a flight travelling from west to east.
Incorrect
Solution: c)
Jet streams are narrow bands of strong winds that flow over thousands of kilometres from west to east. Major jet streams are found near the upper levels of the atmosphere, around 9 to 16 km from the earth’s surface, and can reach speeds of over 320 kph.
The jet streams shift to the north or south depending on the season. During winters, the wind current is the strongest. They are also closer to the Equator during winter.
The major jet streams are the Polar Front, Subtropical, and Tropical jet streams. In India, the Tropical jet stream influences the formation and duration of the summer monsoon.
Most commercial planes fly at the jet stream level, and a strong jet stream can provide a potent tailwind to a flight travelling from west to east.
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Question 5 of 5
5. Question
Equatorial counter-currents are unique because
Correct
Solution: a)
Equatorial counter-currents are major surface flows that carry water eastward in the Atlantic, Indian, and Pacific Oceans.
They are located near the equator and are sandwiched between two westward-flowing currents, the North Equatorial Current and the South Equatorial Current.
Equatorial counter-currents are unique, in that they flow in the opposite direction of the surface winds. The other major surface currents in the tropics flow in the same direction as the prevailing winds.
Incorrect
Solution: a)
Equatorial counter-currents are major surface flows that carry water eastward in the Atlantic, Indian, and Pacific Oceans.
They are located near the equator and are sandwiched between two westward-flowing currents, the North Equatorial Current and the South Equatorial Current.
Equatorial counter-currents are unique, in that they flow in the opposite direction of the surface winds. The other major surface currents in the tropics flow in the same direction as the prevailing winds.
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