NCERT Class 7 Geography — Chapter 1: Water

mcqmedium

Which of the following pairs is correctly matched?

Official previous-year question

Verified 1 Aug 2026.

Options

ATsunami : Periodic rise and fall of water
BOcean Currents : Water cycle process
CTide : Strong seismic waves
DCaspian Sea : Largest Lake

Did you get this right?

Solution

Correct Option

The correct option is

Caspian Sea : Largest Lake

Explanation

This question tests the fundamental definitions of various movements of ocean water (tides, waves, currents) and facts regarding major inland water bodies.

Option Analysis

Option (a): Correct. The Caspian Sea is the world's largest inland body of water, classified as the largest lake by area. It is located between Europe and Asia.
Option (b): Incorrect. Tides are the rhythmic rise and fall of ocean water twice in a day, caused primarily by the gravitational attraction of the moon and the sun. They are not seismic waves.
Option (c): Incorrect. A Tsunami is a series of waves caused by the displacement of a large volume of water, usually attributed to earthquakes, volcanic eruptions, or underwater landslides (seismic activity). The "periodic rise and fall of water" refers to tides, not tsunamis.
Option (d): Incorrect. Ocean currents are streams of water flowing constantly on the ocean surface in definite directions. While they are part of the hydrosphere, the "water cycle process" specifically refers to the continuous movement of water through evaporation, condensation, and precipitation.

Key Takeaway: Tides are gravitational phenomena, Tsunamis are seismic waves, and Ocean Currents are directional flows. The Caspian Sea is the largest lake.

Your note

More from Chapter 1: Water

The process by which water continually changes its form and circulates between oceans, atmosphere, and land is best described by which of the following terms?

easy

With reference to the distribution of water on Earth, consider the following statements: 1. Groundwater has a larger volume than inland seas and salt lakes. 2. Inland seas and salt lakes contain more water than the atmosphere. 3. The volume of water in the atmosphere is greater than that in rivers. 4. Rivers hold the least volume of water among these four sources. Which of the statements given above are correct?

hard

Consider the following statements regarding the Earth's water: 1. The water cycle ensures that the water existing today is entirely different from the water that existed centuries ago. 2. The major sources of fresh water include rivers, ponds, springs, and glaciers. 3. The amount of water in the atmosphere is higher than that in fresh water lakes. Which of the statements given above is/are correct?

medium

In the context of water distribution, which of the following accounts for the largest percentage of fresh water on Earth?

medium

Consider the following statements regarding salinity: 1. Salinity is defined as the amount of salt in grams present in 1000 grams of water. 2. The average salinity of the oceans is generally 45 parts per thousand. 3. Most of the salt in the ocean is sodium chloride. Which of the statements given above is/are correct?

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Correct Option

The correct option is

Caspian Sea : Largest Lake

Explanation

This question tests the fundamental definitions of various movements of ocean water (tides, waves, currents) and facts regarding major inland water bodies.

Option Analysis

Option (a): Correct. The Caspian Sea is the world's largest inland body of water, classified as the largest lake by area. It is located between Europe and Asia.
Option (b): Incorrect. Tides are the rhythmic rise and fall of ocean water twice in a day, caused primarily by the gravitational attraction of the moon and the sun. They are not seismic waves.
Option (c): Incorrect. A Tsunami is a series of waves caused by the displacement of a large volume of water, usually attributed to earthquakes, volcanic eruptions, or underwater landslides (seismic activity). The "periodic rise and fall of water" refers to tides, not tsunamis.
Option (d): Incorrect. Ocean currents are streams of water flowing constantly on the ocean surface in definite directions. While they are part of the hydrosphere, the "water cycle process" specifically refers to the continuous movement of water through evaporation, condensation, and precipitation.

Key Takeaway: Tides are gravitational phenomena, Tsunamis are seismic waves, and Ocean Currents are directional flows. The Caspian Sea is the largest lake.