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100

Prevention or efficient use of resources

Conservation

100

State of the atmosphere in a region of the planet

Weather

100

Dirt and chemicals in the air

Pollution

100

Abnormal period of rainfall

Drought

100

A variety of something

Diversity

200

Reusing a substance or prodcut

Recycle

200

Environmental conditions

Climate

200

Material made of petroleum generally used as a storage

Plastic

200

Enormous amount of water that reaches land

Flood

200

To be able to maintain itself working

Sustainable

300

Trash cans to recycle materials

Bin

300

Materials can be used by Humans coming from the environment

Resources

300

Smoke and dust that raises up in the atmosphere

Fumes

300

Eliminate a specie of organism from the planet

Extinction

300

Said of something that is eco-friendly

Green

400

Giving knowledge about a fact

Awareness

400

Layer of the atmosphere made of pure oxygen

Ozone

400

Any product or substance that is not usuable anymore

Waste

400

The effect that something has over other thing

Impact

400

Increase something

Raise

500

Able to be absorb by the environment

Degradable

500

Smoke that comes out from the cars and industries after burning carbon based substances

Monoxide/Dioxide

500

A resource that cannot be replanished or reuse

Non-renewable

500

Cutting down the trees

Deforestation

500

Amount of heat or cold in the environment

Temperature