Ocean Tides and the Process of their Formation

Q. How are deltas formed?

1. By deposition of sediments in the lakes.
2. By deposition of sediments by humans near the sea or ocean.
3. By deposition of water by the rivers near the sea or ocean.
4. By deposition of sediments by the rivers near the sea or ocean.

Q. When the gravitational forces of the sun and the moon combine to pull the water on the Earth in same direction, it is called the.

1. rip tide
2. spring tide
3. neap tide

Q. How do low and high tides occur?

Q. Which of the following is/are the uses of tides?

1. Acts as natural cleaners
2. Helps in navigation
3. Harnessed to generate electricity
4. Causes floods

Q. When the gravitational forces of the Sun and the Moon act on the ocean water in two different directions, the resulting tide is called Neap Tide.

1. True
2. False

Q. Which among the following terms describes the periodic movements of ocean water due to the gravitational pull of the Sun and the Moon?

1. Ocean waves
2. Ocean tides
3. Ocean currents
4. Tsunamis

Q. How many spring tides are seen on the Earth after one complete revolution of Moon around the Earth?

1. Two
2. Three
3. Five
4. Four

Q. The role of high tides in helping ships navigate shallow harbours is witnessed majorly in which Indian port?

1. Paradwip
2. Haldia
3. Kolkata
4. Mumbai

Q. _________ are periodic movements of ocean water due to the Moon and Sun’s gravity.

1. Tides
2. Cyclones
3. Tsunami
4. Oceanic Current

Q. Which of the following is formed at the end of a river's course?

1. Lake
2. Dam
3. Port
4. Delta