Question 1

What is one major difference between freshwater and seawater?

Accepted Answer

Seawater contains salt

Answer

Freshwater is found in oceans

Answer

Seawater is drinkable

Answer

Freshwater is more salty than seawater

Question 2

Where can you typically find freshwater?

Accepted Answer

In rivers and lakes

Answer

In the air

Answer

In swimming pools

Answer

In the ocean

Question 3

What percentage of Earth's water is freshwater?

Accepted Answer

About 2.5%

Answer

About 50%

Answer

About 10%

Answer

About 75%

Question 4

What is a common use for freshwater?

Accepted Answer

Drinking water

Answer

Creating tidal waves

Answer

Making the ocean saltier

Answer

Fishing in the sea

Question 5

Why is seawater not safe to drink?

Accepted Answer

It contains too much salt

Answer

It is always dirty

Answer

It is too cold

Answer

It has too many fish

Question 6

What is a habitat for freshwater organisms?

Accepted Answer

Ponds and lakes

Answer

Deserts

Answer

Mountains

Answer

The open ocean

Question 7

What can happen to fish if freshwater mixes with seawater?

Accepted Answer

They can become stressed or die

Answer

They will grow bigger

Answer

They will change color

Answer

They will live longer

Question 8

What is the main source of freshwater for most people?

Accepted Answer

Rivers and lakes

Answer

Seas and oceans

Answer

Deserts

Answer

Clouds and fog

Question 9

Which of the following is a characteristic of seawater?

Accepted Answer

It is salty

Answer

It is cold all the time

Answer

It is sweet

Answer

It is clear

Question 10

How do humans usually get their freshwater?

Accepted Answer

From rivers, lakes, and groundwater

Answer

From factories

Answer

From the sky

Answer

From the ocean

Question 11

What is the main difference between freshwater and seawater?

Accepted Answer

Freshwater has less salt than seawater.

Answer

Freshwater is found only in oceans.

Answer

Freshwater is always warm.

Answer

Seawater is safe to drink.

Question 12

What is a common place where you can find freshwater?

Accepted Answer

Lakes

Answer

Oceans

Answer

Puddles of salt

Answer

Deserts

Question 13

Which of the following is NOT a characteristic of seawater?

Accepted Answer

It is not found in rivers.

Answer

It can be salty.

Answer

It contains salt.

Answer

It is found in oceans.

Question 14

What keeps freshwater and seawater different in taste?

Accepted Answer

The amount of salt.

Answer

The temperature of the water.

Answer

The size of the bodies of water.

Answer

The color of the water.

Question 15

What is the term for water that contains a lot of salt?

Accepted Answer

Seawater

Answer

Rainwater

Answer

Ice water

Answer

Freshwater

Question 16

Which of the following ecosystems is most likely to have freshwater?

Accepted Answer

A river

Answer

A coral reef

Answer

A tidal pool

Answer

An estuary

Question 17

What process turns seawater into freshwater?

Accepted Answer

Desalination

Answer

Photosynthesis

Answer

Evaporation

Answer

Condensation

Question 18

Which of the following can you typically find in seawater but not in freshwater?

Accepted Answer

Salt

Answer

Fish

Answer

Plants

Answer

Insects

Question 19

What is the largest body of saltwater on Earth?

Accepted Answer

The ocean

Answer

A river

Answer

A lake

Answer

A pond

Question 20

What do plants in freshwater environments need to grow?

Accepted Answer

Freshwater

Answer

Saltwater

Answer

Oil

Answer

Concrete

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