100 POINTS HELP AND IF YOU ANSWER AT LEAST 15

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Which sample of ocean water would be the most likely to have the highest salinity?

Question 1 options:

Ocean water taken from the surface of the ocean

Ocean water taken from the bottom of the ocean

The warmest sample of ocean water

The ocean water taken from an area near the polar ice caps

Question 2 (2 points)

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Which answer best explains one of the reasons that oceans are salty?

Question 2 options:

Water from streams and rivers carry salt to the ocean

Water is removed by deep ocean vents

Salt comes from small ocean organisms

The oceans have always been salty

Question 3 (4 points)

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Mark all the things that can impact the density of salt water

Question 3 options:

Depth

Temperature

Time

Salinity

Question 4 (2 points)

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You have two balls in a glass of liquid. Ball A sinks to the bottom. Ball B floats. Which ball is the densest?

Ball A is at the bottom of a glass of liquid. Ball B is floating on the top of the liquid.

Question 4 options:

You can not tell which ball is the densest with this information

B

A

A and B are the same density

Question 5 (2 points)

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Ocean water can impact local climates because it moves from one place to another place.

Question 5 options:

thermal energy

salt

potential energy

density

Question 6 (2 points)

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Ocean currents movement and direction of flow are influenced by

Question 6 options:

all of these are correct

the Coriolis effect

the size and shape of continents

prevailing winds

Question 7 (2 points)

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Which factor is the major cause of both prevailing global wind patterns and ocean currents?

Question 7 options:

The Great Ocean Conveyor Belt

The Earth has a North and South Pole

Ocean water has different densities

The sun’s heat is uneven on the Earth

Question 8 (2 points)

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What is the name for the prevailing global wind pattern that comes from the poles and blows from east to west?

Question 8 options:

Trade Winds

Doldrums

Prevailing Westerlies

Polar Easterlies

Question 9 (2 points)

Which two things drive the Global Ocean Conveyor Belt?

Question 9 options:

temperature and density

the moon and tides

salt and wind

the moon and gravity

Question 10 (2 points)

waves transfer

Question 10 options:

heat

matter

energy

density

Question 11 (2 points)

Ocean waves are caused by

Question 11 options:

density

thermal energy

wind

the moon

Question 12 (2 points)

The Earth is on the left, the moon is on the right. Going around Earth, A is at 9:00, B is at 12:00, C is at 3:00, D is at 6:00

Which points on the diagram would have high tides?

Question 12 options:

A and C

B and D

D and C

A and B

Question 13 (2 points)

Tides are mostly caused by

Question 13 options:

The force of the Moon’s gravity

Wind

The spinning of Earth

Ocean currents

Question 14 (2 points)

Which of the following is a benefit of tidal energy?

Question 14 options:

It can be installed along rivers

It is inexpensive to install

It is beneficial to wildlife

It is a renewable resource

Question 15 (2 points)

How much salt is found in freshwater?

Question 15 options:

Less than 1%

0%

Around 20%

Around 10%

Question 16 (2 points)

What is a watershed?

Question 16 options:

The area around a pond

An area of land where all the water drains into the same place.

The groundwater below a river

The area around a river

Question 17 (4 points)

Which of the following things threaten our fresh water supply? Check all that apply.

Question 17 options:

improper waste disposal

overuse

tidal power

fertilizer use

Question 18 (2 points)

True or false: Hydroelectric power causes no harm to ecosystems.

Question 18 options:

True

False

Question 19 (2 points)

Which of the following is a negative impact of hydroelectric power?

Question 19 options:

Hydroelectric changes ecosystems

Hydroelectric power releases carbon dioxide into the air

Hydroelectric power doesn’t produce electricity reliably

Hydroelectric power uses up water

Question 20 (2 points)

Tsunami waves are formed differently than traditional ocean waves.

Question 20 options:

True

False