Challenge Prelims V1.0 – Day 17 – GS Paper (Geography)

1. Consider the following pairs:

Relief features: Description

1. Guyots: Mountain with pointed summits
2. Seamounts: Flat-topped submerged mountains
3. Atoll: Low ring-shaped island found in tropical ocean

How many of the pairs given above is/are correctly matched?

2. With reference to the occurrence of Tides on Earth’s surface, consider the following statements:

1. The difference between the force of gravitational attraction of the sun and moon and the centrifugal force leads to the generation of tides.
2. The intensity of tides is magnified by the shape of bays and estuaries along a coastline.
3. The tidal ranges are more than average at aphelion.

How many of the statements given above is/are correct?

3. Consider the following pairs:

Ocean Currents: Characteristic

1. Labrador Current: cold
2. Kuroshio Current: warm
3. Canaries Current: warm

How many of the pairs given above is/are correctly matched?

4. In the context of temperature of Ocean waters, consider the following statements:

1. The Oceans in the Southern hemisphere record relatively higher temperatures than in the Northern hemisphere.
2. The local prevalent winds blowing from land towards the oceans lead to longitudinal variation in the temperature.
3. Approximately 90% of the total volume of water is found below the thermocline in the deep ocean.

How many of the statements given above is/are correct?

5. Consider the following statements regarding Submarine Canyons:

1. They are absent near the mouth of rivers due to sediment deposition.
2. Absence of submarine canyons is a unique feature of the Bay of Bengal.

Which of the statements given above is/are correct?

6. Consider the following statements with reference to tides:

1. Spring tides usually occur twice a month.
2. An area has a diurnal tidal cycle if it experiences either one high or one low tide every lunar day.
3. The time between the high tide and low tide when the water level is falling is called flow.

How many of the statements given above is/are correct?

7. In the context of oceanography, a Bay is a:

8. In the context of Oceanic floor deposits, ‘oozes’ refer to:

9. Consider the following statements regarding fringing reefs:

1. Fringing reefs are coralline platforms lying close to the shore extending outwards from the mainland.
2. They are sometimes separated from the shore by a shallow lagoon.

Which of the statements given above is/are correct?

10. With reference to the characteristics of the Ocean Currents, consider the following statements:

1. Cold currents are usually observed on the east coast of continents in the low and middle latitudes.
2. The mixing of warm and cold currents amplifies the growth of planktons.
3. Oceanic currents are slow at the surface due to friction with the atmospheric air as compared to depths.

How many of the following statements given above is/are correct?

11. The Oceanic relief feature is regarded as part of the continent submerged due to a rise in sea level. This area of the oceans witnesses the richest fishing grounds in the world. Due to their shallowness, the penetration of sunlight makes this area plankton rich and further catalyzes the growth of minute plants and microscopic organisms.

Identify the Oceanic relief feature from the passage given above:

12. How many of the following factors affect the salinity of oceans on the Earth?

1. Wind
2. Change in the density of water
3. Influx of water from the river
4. Evaporation and precipitation

Select the correct answer from the code given below.

13. The sunlight does not penetrate into this area of the ocean. The only light available at these depths is generated by organisms. This zone of the oceans is further divided into the midnight zone, abyss zone, and the hadal zone. About 5% of the primary production from the surface makes it to this zone.

Identify the Oceanic zone from the passage given above.

14. In terms of percentage, arrange the share of the following sources of freshwater in increasing order.

1. Ice Caps and Glaciers
2. Lakes
3. Atmosphere
4. Streams and rivers

Select the correct answer using the code given below.

15. Consider the following:

1. Ria coasts
2. Fjord coasts
3. Dalmatian coasts

How many of the above are features of submergence coast?