Science (4th) Ch. 6 Lesson 5 - Pollution and Conservation (vocab & notes)
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All the living and nonliving things in an area.
environment
Harmful or unwanted material that has been added to the environment.
pollution
Harmful rain caused by the burning of fossil fuels.
acid rain
The act of saving, protecting, or using resources wisely.
conservation
A mixture of decaying matter that helps plants grow in soil.
compost
To use less of something.
reduce
To use something again.
Reuse
To make new objects or materials from old objects or materials.
recycle
Human activities can cause pollution of Earth’s land, air and water. Name four human activities that can cause pollution of Earth’s land.
littering chemicals solid wastes acid rain
Acid rain and other forms of __________ are caused by the overuse of fossil fuels.
air pollution
What is one way to prevent pollution?
recycling
Recycling is one way to __________ pollution.
prevent
Name three ways to conserve water.
• Turn off the faucet if you aren’t using it (like brushing your teeth) • Run only full loads in laundry machines and dishwashers • Fix leaky faucets and toilets
What is it called when farmers conserve nutrients in the soil by rotating their crops every year?
crop rotation