GATE XE 2021 Paper 1 — page 56

Questions 166–168 of 175. Imported answers require review unless explicitly marked reviewed.

Which of the following statement(s) is/are true with regard to the Hadley circulation?

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The ascending branch is narrower than its descending branch.

Thunderstorms are more frequent in the subsiding region of the Hadley cell than in its ascending region.

The lower level winds between the ascending and descending branches of the Hadley cell are north-westerly.

Latent heat is transported from the subsiding to the ascending region of the Hadley cell.

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Which of the following statement(s) is/are true about the ocean circulation?

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Large-scale ocean surface currents are driven by winds.

Cold, dense and salty water forms in the North Atlantic Ocean.

Upwelling currents bring warm nutrient deficient water to the surface of the ocean.

Thermohaline circulation does not transport energy in the meridional direction.

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Coral reefs are found primarily in tropical and subtropical shallow seawaters. Which of the following statement(s) is/are correct?

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Corals require plenty of sunlight for photosynthesis and sunlight is abundant in the tropical and subtropical latitudes.

Corals grow optimally in seawater unsaturated in carbonate, which is found only in the tropical and subtropical oceans.

Corals grow optimally in fresh low-salinity water.

Corals grow optimally in water temperatures between 23°C and 29°C.

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2021 · Paper 1