How do human activities affect groundwater?

Pollution can seep into the ground & contaminate groundwater

Waterthat lies below the ground.

How do human activities affect streams and lakes?

Runoff can carry fertilizers, pesticides, &other materials.

An area of land that drains runoffinto a body of water.

How do ice and snow affect climate?

They reflect solar energy back into space & keep temps low.

Why are wetlands important?

They habitats, filter runoff, & controlflooding &erosion.

How do human activities affect glaciers?

Burning fossil fuels increases CO2 & temps, & cause melting.

Alargebody of water that is surrounded by land.

A bodyof water that flowswithina channel.

How do glaciers affect sea level?

It changes as climate change cause glaciers to melt or form.

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Freshwater

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6th Grade Earth & Space Science Freshwater Chapter Essential Questions

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Questions 19

Answers

1
How do human activities affect groundwater?
Human activities do not affect the groundwater.
Irrigation decreases the nutrients in groundwater.
None of these
Pollution can seep into the ground & contaminate groundwater
2
How have human activities affected wetlands?
Buildings, roads, & other uses allow for runoff pollution.
They have been filled in with dirt.
They have been drained of water.
All of these
3
What is groundwater?
Waterthat lies below the ground.
Water that flows in streams, rivers, or waterfalls.
Water that lies above ground.
None of these
4
True or False: Glaciers can form lake basins.
True
False
5
How do human activities affect streams and lakes?
Activities increase the water levels in streams & lakes
None of these
Runoff can carry fertilizers, pesticides, &other materials.
Human activities do not affect our streams and lakes.
6
On Earth, freshwater only occurs as a liquid.
True
False
7
What is a watershed?
A large body of water surrounded by land.
An area of land that drains runoffinto a body of water.
None of these
A cascade of water falling from a height.
8
How do ice and snow affect climate?
Ice & snow absorb solar energy and increase surface temps.
They reflect solar energy back into space & keep temps low.
Ice and snow do not affect the climate.
9
Why are wetlands important?
They are valuable land for building houses and businesses.
None of these
Wetlands are not important.
They habitats, filter runoff, & controlflooding &erosion.
10
How do human activities affect glaciers?
Human activities do not affect glaciers. They are too big!
Burning fossil fuels increases CO2 & temps, & cause melting.
None of these
Society has caused a decrease in temps, creating glaciers.
11
True or False: People use groundwater as a source of water.
True
False
12
How much of Earth's freshwater is made up of streams and lakes?
Less than 1%
50%
10%
3%
13
Organisms living freshwater are not affected by the amount of oxygen & nutrients in the water.
True
False
14
What is a lake?
Alargebody of water that is surrounded by land.
Abody of water that flowswithina channel.
A small body of water surrounded by land.
A cascade of water falling from a height.
15
What percentage of sunlight that hits snow or ice is reflected back into space?
20
80
75
25
16
What is a stream?
A bodyof water that flowswithina channel.
A cascade of water falling from a height
A largebody of water that is surrounded by land.
A large flow of water that goes into an ocean or a lake.
17
How much of Earth's freshwater is groundwater?
Almost 1/3
Almost 20%
All of it
More than 1/2
18
How do glaciers affect sea level?
It changes as climate change cause glaciers to melt or form.
They do not affect sea level. They are only frozen water.
Glaciers push the water level up because of their size.
19
What areas help to naturally filter pollution from groundwater?
Wetlands
Beaches
Waterfalls
Aquifers

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