Tag: ocean

Quizzes (12) Questions (15)

Questions Related to ocean

Multiple choice geography ocean movements of ocean and sea water oceanic circulations circulation of ocean water oceans : temperature, salinity and density tsunami and floods

Neap tides, i.e., small tides are caused when _____________________.

  1. Sun, and moon are at right angles

  2. Sun, earth and moon are in one line

  3. There is new moon

  4. There is full moon
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Neap tides occur when the sun and moon are at right angles relative to the earth, causing their gravitational forces to partially cancel each other out, resulting in lower high tides.

Multiple choice geography ocean movements of ocean and sea water oceanic circulations circulation of ocean water oceans : temperature, salinity and density tsunami and floods

The rise and fall of the sea-water at the surface at constant intervals is known as __________.

  1. Bore

  2. Tides

  3. Waves

  4. Water drift
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Tides are the periodic rise and fall of sea levels caused by the gravitational forces exerted by the moon and the sun, and the rotation of the earth.

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

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

  1. Currents do not exert an influence on the climatic conditions of the coasts

  2. Winds play an important role in the circulation of the ocean currents

  3. Currents are produced by the differences in the density of the sea water at different depths

  4. Direction of ocean currents is influenced by the shape and position of coasts
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Ocean currents significantly influence the climate of coastal regions by transporting warm or cold water, which affects air temperature and humidity.

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

Which of the following is not an effect of the ocean currents?

  1. They effect commerce because they keep the harbours open even during winter

  2. Water of the ocean is kept pure

  3. Warm equatorial currents lower the temperature of the places through which they pass

  4. They do not effect rainfall over the coasts
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Ocean currents have a profound effect on coastal rainfall; for example, warm currents often increase moisture and rainfall, while cold currents can lead to aridity.

Multiple choice geography ocean movements of ocean and sea water oceanic circulations circulation of ocean water oceans : temperature, salinity and density tsunami and floods

Spring tides are caused, when _____________________.

  1. The earth, moon and sun are in a line

  2. The moon and sun are on a line

  3. The sun and moon are at right angles to each other and the earth is at the centre

  4. There is new moon
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Spring tides occur when the earth, moon, and sun are aligned, causing their gravitational forces to combine and produce higher high tides and lower low tides.

Multiple choice geography ocean movements of ocean and sea water oceanic circulations circulation of ocean water oceans : temperature, salinity and density tsunami and floods

Neap tides occur _______________.

  1. On new and full moon days

  2. On first and third quarters of the month

  3. Twice daily

  4. On every full moon
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Neap tides occur during the first and third quarters of the moon phase, when the sun and moon are at right angles to the earth.

Multiple choice geography ocean movements of ocean and sea water oceanic circulations circulation of ocean water oceans : temperature, salinity and density tsunami and floods

Tides are caused because of ___________________.

  1. Gravitational pull of the sun

  2. Gravitational pull of the moon

  3. Gravitational pull of the earth towards its axis

  4. Difference in the temperatures of water of the sea at different depths
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

While the sun also exerts a gravitational pull, the moon is the primary driver of tides due to its proximity to the earth.

Multiple choice movements of ocean and sea water geography ocean circulation of ocean water oceans : temperature, salinity and density tsunami and floods oceanic circulations

Sea-waves are undulated movements of water on the surface of the sea due to ________________.

  1. rotation of earth

  2. difference in temperature

  3. friction of wind on the surface

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Wind blowing over the surface of the ocean creates friction, which transfers energy to the water and generates waves.

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

Tides in the ocean will be highest when __________________.

  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
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Tides are highest (spring tides) during the new moon and full moon phases, when the gravitational pull of the sun and moon are aligned.

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

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

  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
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Warm currents generally increase humidity and rainfall in coastal areas, not decrease it. Cold currents are typically associated with dry conditions.