Which of the following is not a part of the hydrological cycle?

Through which of the following processes does the water in the oceans participate in the water cycle?

a. Evaporation b. Evapotranspiration c. Sublimation d. Condensation e. Precipitation

Which of the following statements is/are correct?

a. About 71 percent of the planetary water is found in the oceans. b. Nearly 90 percent of the water that falls on land returns to the atmosphere through evaporation from over the oceans as well as from other places. c. The hydrological cycle is the circulation of water within the Earth’s hydrosphere in different forms.

Which of the following statements is/are incorrect?

a. A major portion of the ocean floor is found between 3-6 km below the sea level. b. The floors of the oceans are irregular. c. Ocean relief features were formed due to tectonic processes only.

Which of the following is/are correct about deep sea plains?

a. These are the shallowest parts of the ocean. b. They are the flattest and the smoothest regions. c. These are steep sided narrow basins. d. They are covered with fine-grained sediments like clay and silt.

Which of the following are the major divisions of the oceanic floors?

a. Continental shelf b. Continental slope c. Deep sea ridges d. Deep sea plains e. Oceanic canyons f. Oceanic deeps

Canyons and trenches are observed in

Which of the following statements is/are incorrect?

a. The boundary of continental shelf indicates the end of continents. b. The Siberian shelf is the deepest shelf in the world. c. The shelf typically ends at a very steep slope, called the shelf break.

Which of the following continental shelves is/are almost absent or very narrow along the margins?

a. Coasts of Chile b. West coast of Sumatra c. Sunda shelf off Borneo, Sumatra and Java

________ is composed of two chains of mountains separated by a large depression.

Which of the following are flat topped submerged mountains?

Which of the following statements is/are correct?

a. Oceanic deeps occur at the bases of continental slopes and along island arcs. b. They are associated with active volcanoes and strong earthquakes. c. 32 deeps in Indian Ocean have been explored so far.

The gulf stream (warm current) raises the temperature near the

Which of the following is/are correct about atolls?

a. They are volcanic in origin. b. They are sometimes found cutting across the continental shelves and slopes, often extending from the mouths of large rivers. c. They are low islands found in the tropical oceans. d. They consist of coral reefs surrounding a central depression.

Which of the following is/are incorrect?

a. The enclosed seas in the low latitudes record relatively lower temperature than the open seas. b. The enclosed seas in the high latitudes have higher temperature than the open seas. c. The temperature of surface water decreases from the equator towards the poles. d. The oceans in the northern hemisphere receive more heat than the oceans in the southern hemisphere.

Thermocline is

Which of the following has the lowest salinity?

Which of the following statements is/are correct?

a. In Arctic and Antarctic circles, only one layer of cold water exists, which extends from surface to deep ocean floor. b. The rate of decrease of temperature with increasing latitude is generally 1.5^oC per latitude. c. The rate of decrease in temperature according to depth is uniform throughout the ocean.

Which of the following is incorrect?

Which of the following is/are correct?

a. The lower salinity water rests below the higher salinity water. b. Salinity decreases with depth. c. The distinct zone where salinity increases sharply is called the halocline.