Tag: circulation of ocean water

Questions Related to circulation of ocean water

Which is most abundant element in sea water?

geography ocean and man circulation of ocean water movements of ocean and sea water oceans : temperature, salinity and density study of water pollution threats to water resource pollution and environment

  1. Sodium

  2. Chlorine

  3. Iodine

  4. Potassium

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Correct Option: A
Explanation:

The most abundant dissolved ions in seawater are sodium, chloride, magnesium, sulfate and calcium. Its osmolarity is about 1000 mOsm/l.

Tides in the ocean will be highest when __________________.

geography ocean tsunami and floods movements of ocean and sea water oceanic circulations circulation of ocean water

  1. it is full Moon

  2. Moon is eclipsed

  3. Moon and Sun are pulling at right angles to the Earth

  4. Moon is in new phase

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Correct Option: D

Which of the following statements about the ocean currents is not correct?

geography ocean tsunami and floods movements of ocean and sea water oceanic circulations circulation of ocean water

  1. Currents are rivers in the sea

  2. The water moves forward and the currents are felt at the depth as well

  3. They are caused by the unequal temperature of equatorial and polar regions

  4. Generally there is scanty rainfall over the coastal areas where the warm currents flow

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Correct Option: D

Red Sea is located in Indian Ocean. What is its total area?

geography water bodies movements of ocean and sea water oceanic circulations circulation of ocean water study of water pollution threats to water resource pollution and environment

  1. 438,000 sq. km

  2. 218,000 sq. km

  3. 348,000 sq. km

  4. 638,000 sq. km

Show answer
Correct Option: A
Explanation:
438,000 km²
The Red Sea has a surface area of roughly 438,000 km2 (169,100 mi2), is about 2250 km (1398 mi) long and, at its widest point, 355 km (220.6 mi) wide.

Scheme implemented under the Ganga Action Plan is ________________.

geography tides movements of ocean and sea water circulation of ocean water ocean water movement

  1. Waste water treatment

  2. Electric crematorium

  3. River front development

  4. All of these

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Correct Option: D
Explanation:

The Ganga action plan was, launched by Shri Rajeev Gandhi, the Prime Minister on 14 Jan. 1986 with the main objective of pollution abatement, to improve the water quality by interception, diversion and treatment of domestic sewage and present toxic and industrial chemical wastes from identified grossly polluting units entering into the river.


Hence, the correct option is $\text{D}$

The term "Bore" signifies _____________.

geography tides movements of ocean and sea water circulation of ocean water ocean water movement

  1. To drill a well

  2. a wave caused by tides

  3. a wave cause by air

  4. To extract water from earth

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Correct Option: B
Explanation:

A tidal bore, often simply given as bore in context, is a tidal phenomenon in which the leading edge of the incoming tide forms a wave (or waves) of water that travels up a river or narrow bay against the direction of the river or bay's current.

The spring tide occurs when the moon, the sun and the earth make in angle of _______.

geography tides movements of ocean and sea water circulation of ocean water ocean water movement

  1. $180^o$

  2. $90^o$

  3. $45^o$

  4. $33^o$

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Correct Option: A
Explanation:

The spring tide occurs when the moon, the sun and the earth make in angle of $180^0$.

They occur when the Earth, the Sun, and the Moon are in a line. The gravitational forces of the Moon and the Sun both contribute to the tides. Spring tides occur during the full moon and the new moon. During the moon's quarter phases the sun and moon work at right angles, causing the bulges to cancel each other.

Neap tides are produced in the first and third quarters of the moon. Then _______.

geography tides movements of ocean and sea water circulation of ocean water ocean water movement

  1. Moon and the Sun are in conjunction with the other planets

  2. Moon and the Sun are in opposition with each other

  3. The attractions of the Sun and the Moon are at right angles to each other

  4. The Moon and Sun are in quadrant position to each other

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Correct Option: C
Explanation:

Neap tides are produced in the first and third quarters of the moon. Then the attractions of the Sun and the Moon are at right angles to each other.

Neap Tides
During the moon's quarter phases the sun and moon work at right angles, causing the bulges to cancel each other. The result is a smaller difference between high and low tides and is known as a neap tide. Neap tides are weak tides.

The difference between high tide and low tide is __________.

geography tides movements of ocean and sea water circulation of ocean water ocean water movement

  1. Tidal range

  2. Tidal width

  3. Tidal height

  4. None of these

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Correct Option: A
Explanation:

  • Tides are the rise and fall of sea level caused by the combined effects of gravitational forces exerted by sun, moon and earth.
  • Tidal range is the vertical difference between high tide and its succeeding low tide.

The average time interval between successive high tide and low tide is _____.

geography tides movements of ocean and sea water circulation of ocean water ocean water movement

  1. 12 hours and 26 minutes

  2. 6 hours and 12 minutes

  3. 24 hours and 52 minutes

  4. 50 minutes

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Correct Option: C