Fall Sem Test Aq Science

An El Nino event occurs when the tropical ocean surface waters are warmer in which ocean?

• Atlantic

• Indian

• Pacific

• Arctic

How often do El Nino events typically occur?

• 2-5 years

• 2-7 years

• 7-10 years

• 10-20 years

Tides are caused by what force from the sun and moon?

• gravitational

• strong

• tidal force

• armed forces

As the moon revolves around the earth, the water follows the motion and causes...

• sea levels

• waves and currents

• moon phases

• high tides and low tides

Spring tides have the largest tidal ranges because...

• the earth, moon, and sun are aligned for greater gravitational force.

• the moon has the strongest gravitational force.

• the sun has the most gravitational force.

• none of the above

Neap tides happen at _________ and _________ phases of the moon.

• first quarter and new moon

• last quarter and full moon

• waxing and waning

• 1st quarter and 3rd quarter

During a neap tide, the sun, moon, and earth are at a ___________ angle.

• 360 degree

• 23.5 degree

• 45 degree

• 90 degree

What type of tide is evident when the moon is in the full moon phase?

• high tide

• low tide

• spring tide

• neap tide

______ causes surface currents.

• The Coriolis Effect

• gravity

• density differences

• wind

_______ causes the Coriolis Effect

• Earth's rotation

• gravity

• wind

• density