Ocean

The up and down movement of the surface water is called ___

• Wave
• Tide
• Deep ocean current
• Surface current

A stream of water moving like a river through the ocean is called ___

• Wave
• Tide
• Current

Which of the following causes tides?

• The gravity of the sun only.
• The gravity of the moon only.
• The gravity of both the sun and moon.
• The gravity of the earth.

Which of the following is the reason why the moon affects the tides more than the sun?

• The moon is bigger than the sun.
• The moon is closer to earth than the sun.
• The moon has more gravity than the sun.

How often does a high tide and a low tide occur in a day?

• Once
• Twice
• Three times
• Four times

Which tide happens on a full moon?

• Spring tide
• Neap tide

Which tide happens during third quarter phase of the moon?

• Spring tide
• Neap tide

During which tide does the water level becomes extremely high and low?

• Spring tide
• Neap tide

Which tide occurs when the sun, moon and earth aligns?

• Spring tide
• Neap tide

Which tide occurs when the sun, moon and earth form a right angle?

• Spring tide
• Neap tide