MCQs
Total Questions : 392
| Page 6 of 40 pages
Answer: Option C. -> Tornado
Answer: (c)
A tornado is a violently rotating column of air that is in contact with both the surface of the earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud. They are often referred to as twisters or cyclones, although the word cyclone is used in meteorology, in a wider sense, to name any closed low-pressure circulation.
Tornadoes come in many shapes and sizes, but they are typically in the form of a visible condensation funnel, whose narrow end touches the earth and is often encircled by a cloud of debris and dust.
Most tornadoes have wind speeds less than 110 miles per hour (177 km/h), are about 250 feet (76 m) across, and travel a few miles (several kilometres) before dissipating.
The most extreme tornadoes can attain wind speeds of more than 300 miles per hour (483 km/h), stretch more than two miles (3.2 km) across, and stay on the ground for dozens of miles (more than 100 km).
Answer: (c)
A tornado is a violently rotating column of air that is in contact with both the surface of the earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud. They are often referred to as twisters or cyclones, although the word cyclone is used in meteorology, in a wider sense, to name any closed low-pressure circulation.
Tornadoes come in many shapes and sizes, but they are typically in the form of a visible condensation funnel, whose narrow end touches the earth and is often encircled by a cloud of debris and dust.
Most tornadoes have wind speeds less than 110 miles per hour (177 km/h), are about 250 feet (76 m) across, and travel a few miles (several kilometres) before dissipating.
The most extreme tornadoes can attain wind speeds of more than 300 miles per hour (483 km/h), stretch more than two miles (3.2 km) across, and stay on the ground for dozens of miles (more than 100 km).
Answer: Option B. -> Southern France
Answer: (b)Mistral is a cold and dry strong wind that blows down from the north along the lower Rhone River valley toward the Mediterranean Sea in southern region of France.
Answer: (b)Mistral is a cold and dry strong wind that blows down from the north along the lower Rhone River valley toward the Mediterranean Sea in southern region of France.
Answer: Option A. -> 2 3 4 1
Answer: (a)
Answer: (a)
Answer: Option A. -> The atmosphere has no definite upper limits but gradually thins until it becomes imperceptible.
Answer: (a)
Our atmosphere has five layers- Troposphere, Stratosphere, Mesosphere, Thermosphere and Exosphere. The exosphere is the outermost layer of the atmosphere showing altitude about from 700 km to 10000 km above sea level.
This layer gradually and gradually merges in outer space having no atmosphere.
Answer: (a)
Our atmosphere has five layers- Troposphere, Stratosphere, Mesosphere, Thermosphere and Exosphere. The exosphere is the outermost layer of the atmosphere showing altitude about from 700 km to 10000 km above sea level.
This layer gradually and gradually merges in outer space having no atmosphere.
Question 55. The annual range of temperature in the interior of the continents is high as compared to coastal areas. What is/ are the reason/reasons?
Select the correct answer using the codes given below.
- Thermal difference between land and water
- Variation in altitude between continents and oceans
- Presence of strong winds in the interior
- Heavy rains in the interior as compared to coasts.
Select the correct answer using the codes given below.
Answer: Option B. -> 1 only
Answer: (b)
The first statement is correct as we all know. One major factor affecting the distribution of the temperature of Earth is the distribution of Land and Oceans.
Since there is more land in Northern Hemisphere and more waters in the Southern hemisphere and there is a big difference between the specific heat of land and water; the loss of heat from the continents is bigger than the oceans.
The continents get heated faster and get cooled faster in comparison to the Oceans. This is the reason that the temperatures of the Oceans are moderate while that of continents is extreme.
The moderating effect on the temperature of the land due to the proximity of the seas is called Maritime influence. The increasing effect on the temperature of the land in the interior of the continents is called Continental Influence.
Answer: (b)
The first statement is correct as we all know. One major factor affecting the distribution of the temperature of Earth is the distribution of Land and Oceans.
Since there is more land in Northern Hemisphere and more waters in the Southern hemisphere and there is a big difference between the specific heat of land and water; the loss of heat from the continents is bigger than the oceans.
The continents get heated faster and get cooled faster in comparison to the Oceans. This is the reason that the temperatures of the Oceans are moderate while that of continents is extreme.
The moderating effect on the temperature of the land due to the proximity of the seas is called Maritime influence. The increasing effect on the temperature of the land in the interior of the continents is called Continental Influence.
Answer: Option B. -> 2 1 4 3
Answer: (b)
Willy-willy is a name used by Australians to refer to a dust devil. In the past, it had been used to refer to tropical cyclones. A hurricane is a type of tropical cyclone or severe tropical storm that forms in the southern Atlantic Ocean, Caribbean Sea, Gulf of Mexico, and the eastern Pacific Ocean.
A typical cyclone is accompanied by thunderstorms, and in the Northern Hemisphere, a counterclockwise circulation of winds near the earth’s surface. All Atlantic and Gulf of Mexico coastal areas are subject to hurricanes. Parts of the Southwest United States and the Pacific Coast also experience heavy rains and floods each year from hurricanes spawned off Mexico.
A typhoon is a mature tropical cyclone that develops in the northwestern part of the Pacific Ocean between 180° and 100°E. This region is referred to as the northwest Pacific basin. The United States and its adjacent territories such as the West Indies are threatened by typhoons each year.
The mistral is a strong, cold and usually dry regional wind in France, coming from the north or northwest, which accelerates when it passes through the valleys of the Rhone and the Durance Rivers to the coast of the Mediterranean around the Camargue region.
Answer: (b)
Willy-willy is a name used by Australians to refer to a dust devil. In the past, it had been used to refer to tropical cyclones. A hurricane is a type of tropical cyclone or severe tropical storm that forms in the southern Atlantic Ocean, Caribbean Sea, Gulf of Mexico, and the eastern Pacific Ocean.
A typical cyclone is accompanied by thunderstorms, and in the Northern Hemisphere, a counterclockwise circulation of winds near the earth’s surface. All Atlantic and Gulf of Mexico coastal areas are subject to hurricanes. Parts of the Southwest United States and the Pacific Coast also experience heavy rains and floods each year from hurricanes spawned off Mexico.
A typhoon is a mature tropical cyclone that develops in the northwestern part of the Pacific Ocean between 180° and 100°E. This region is referred to as the northwest Pacific basin. The United States and its adjacent territories such as the West Indies are threatened by typhoons each year.
The mistral is a strong, cold and usually dry regional wind in France, coming from the north or northwest, which accelerates when it passes through the valleys of the Rhone and the Durance Rivers to the coast of the Mediterranean around the Camargue region.
Answer: Option D. -> Cold and fast-blowing winds from the polar region in northern hemisphere
Answer: (d)
The polar easterlies are the dry, cold prevailing winds that blow from the high-pressure areas of the polar highs at the north and south poles towards low-pressure areas within the Westerlies at high latitudes.
Cold air subsides at the pole creating the high pressure, forcing an equatorward outflow of air; that outflow is then deflected westward by the Coriolis Effect.
Answer: (d)
The polar easterlies are the dry, cold prevailing winds that blow from the high-pressure areas of the polar highs at the north and south poles towards low-pressure areas within the Westerlies at high latitudes.
Cold air subsides at the pole creating the high pressure, forcing an equatorward outflow of air; that outflow is then deflected westward by the Coriolis Effect.
Answer: Option A. -> Brazil
Answer: (a)
Answer: (a)
Answer: Option C. -> Verkhoyansk
Answer: (c)
Answer: (c)
Answer: Option A. -> Both A and R are correct, but R is not the correct explanation of A.
Answer: (a)
The well known Polar-front theory was described by the Bergen school early 20th century. The theory explains the formation, development and life cycles of cyclones.
In short several stages of cyclone development can separately be identified. The polar front arises as a result of cold polar air meeting warm tropical air.
It is a stationary front as the air masses are not moving against each other. Off the coast of eastern North America, especially in winter, there is a sharp temperature gradient between the snow-covered land and the warm offshore currents.
Answer: (a)
The well known Polar-front theory was described by the Bergen school early 20th century. The theory explains the formation, development and life cycles of cyclones.
In short several stages of cyclone development can separately be identified. The polar front arises as a result of cold polar air meeting warm tropical air.
It is a stationary front as the air masses are not moving against each other. Off the coast of eastern North America, especially in winter, there is a sharp temperature gradient between the snow-covered land and the warm offshore currents.
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