Static Quiz 18 November 2022
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Static Quiz 18 November 2022
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- Question 1 of 5
1. Question
Consider the following factors:
1. Rotation of the Earth
2. Air pressure and wind
3. Density of ocean water
4. Revolution of the Earth
Which of the above factors influences ocean currents?CorrectExplanation
Factors affecting Ocean Currents
• Salinity difference:
o Point-area of high salinity will have a greater density than the area of low salinity.
• Density:
o Denser water tends to sink, while relatively lighter water tends to rise.
• Physiography:
o Example: Atlantic South Equatorial Current travels westward along the equator until it reaches South America. In Brazil, some of it goes north and some go south.
• Atmospheric Pressure and Planetary Winds:
o Example: Gulf Stream in the Atlantic and the Kuroshio in the Pacific move in a northeaster direction under the influence of the westerlies.
• Coriolis Force: Rotation of the Earth:
o Clockwise direction in the northern hemisphere and in Anti-Clockwise direction in the southern hemisphere
• Temperature difference:
o Example: Equator the ocean water is about 8 cm higher in level than in the Middle latitudes.
Hence, the correct answer is option B.IncorrectExplanation
Factors affecting Ocean Currents
• Salinity difference:
o Point-area of high salinity will have a greater density than the area of low salinity.
• Density:
o Denser water tends to sink, while relatively lighter water tends to rise.
• Physiography:
o Example: Atlantic South Equatorial Current travels westward along the equator until it reaches South America. In Brazil, some of it goes north and some go south.
• Atmospheric Pressure and Planetary Winds:
o Example: Gulf Stream in the Atlantic and the Kuroshio in the Pacific move in a northeaster direction under the influence of the westerlies.
• Coriolis Force: Rotation of the Earth:
o Clockwise direction in the northern hemisphere and in Anti-Clockwise direction in the southern hemisphere
• Temperature difference:
o Example: Equator the ocean water is about 8 cm higher in level than in the Middle latitudes.
Hence, the correct answer is option B. - Question 2 of 5
2. Question
Concerning the wetlands of India, consider the following statements:
1. The country’s total geographical area under the category of wetlands is recorded more in Gujarat as compared to other states.
2. In India, the total geographical area of coastal wetlands is larger than that of inland wetlands.
Which of the statements given above is/are correct?CorrectExplanation
• Gujarat is called the “Land of wetlands”.
• Uttar Pradesh has the most Ramsar Sites in India.
• It has 10 Indian Wetlands.
• Sundarbans is the largest Ramsar Site in India.
• The year 2021 – 50th anniversary of the signing of the Ramsar Convention on Wetlands on 2 February 1971 in Ramsar, Iran, celebrated annually as World Wetlands Day.
About Wetlands
• A wetland is a distinct ecosystem that is flooded by water, either permanently or seasonally, where oxygen-free processes prevail.
• The primary factor that distinguishes wetlands from other landforms or water bodies is the characteristic vegetation of aquatic plants, adapted to the unique hydric soil.
Hence, the correct answer is option A.IncorrectExplanation
• Gujarat is called the “Land of wetlands”.
• Uttar Pradesh has the most Ramsar Sites in India.
• It has 10 Indian Wetlands.
• Sundarbans is the largest Ramsar Site in India.
• The year 2021 – 50th anniversary of the signing of the Ramsar Convention on Wetlands on 2 February 1971 in Ramsar, Iran, celebrated annually as World Wetlands Day.
About Wetlands
• A wetland is a distinct ecosystem that is flooded by water, either permanently or seasonally, where oxygen-free processes prevail.
• The primary factor that distinguishes wetlands from other landforms or water bodies is the characteristic vegetation of aquatic plants, adapted to the unique hydric soil.
Hence, the correct answer is option A. - Question 3 of 5
3. Question
When you travel in the Himalayas, you will see the following:
1. Deep gorges
2. U-turn river courses
3. Parallel mountain ranges
4. Steep gradients causing land-sliding.
Which of the above can be said to be the evidence for the Himalayas being young fold mountains?CorrectExplanation
• Parallel mountain ranges: Himachal, Himadri, and Shivalik’s.
• U-turn river courses: Rivers shifting their courses.
• Steep gradients causing land-sliding: Recent Landslide in Chamoli district of Himachal Pradesh
• Deep gorges: Indus Gorge
Hence, the correct answer is option D.IncorrectExplanation
• Parallel mountain ranges: Himachal, Himadri, and Shivalik’s.
• U-turn river courses: Rivers shifting their courses.
• Steep gradients causing land-sliding: Recent Landslide in Chamoli district of Himachal Pradesh
• Deep gorges: Indus Gorge
Hence, the correct answer is option D. - Question 4 of 5
4. Question
Electrically charged particles from space traveling at speeds of several hundred km/sec can severely harm living beings if they reach the surface of the Earth.
What prevents them from reaching the surface of the Earth?CorrectExplanation
Earth’s magnetic field, also known as the geomagnetic field, is the magnetic field that extends from y, where it interacts with the solar wind, a stream of charged particles emanating from the Sun.
Key Points
• The magnetic field is generated by electric currents due to the motion of convection currents of a mixture of molten iron and nickel in Earth’s outer core.
• Earth’s magnetic field deflects most of the solar wind, whose charged particles would otherwise strip away the ozone layer that protects the Earth from harmful ultraviolet radiation.
Hence, the correct answer is option A.IncorrectExplanation
Earth’s magnetic field, also known as the geomagnetic field, is the magnetic field that extends from y, where it interacts with the solar wind, a stream of charged particles emanating from the Sun.
Key Points
• The magnetic field is generated by electric currents due to the motion of convection currents of a mixture of molten iron and nickel in Earth’s outer core.
• Earth’s magnetic field deflects most of the solar wind, whose charged particles would otherwise strip away the ozone layer that protects the Earth from harmful ultraviolet radiation.
Hence, the correct answer is option A. - Question 5 of 5
5. Question
Which of the following is the chief characteristic of ‘mixed farming”?
CorrectExplanation
• Mixed farming is a type of farming that involves both the growing of crops and the raising of livestock.
• Mixed Cropping: Two or more crops are grown on the same piece of land simultaneously.
Hence, the correct answer is option C.
IncorrectExplanation
• Mixed farming is a type of farming that involves both the growing of crops and the raising of livestock.
• Mixed Cropping: Two or more crops are grown on the same piece of land simultaneously.
Hence, the correct answer is option C.
