Answer:

AIR

Walk, bike, carpool, or take public transit.

Reduce heating needs by making your house more energy efficient. ...

Say no to wood fire burning.

Use hand-powered or battery-operated garden tools. ...

Know before you go. ...

Check your tire pressure. ...

Reduce, reuse, and recycle!

Be idle-free.

WATER

Boiling. The simplest method to purify water is to boil it for a good amount of time. ...

Water Purifier. Alt Attribute: A. O. Smith X4+ Water Purifier. ...

Reverse Osmosis. ...

Water Chlorination. ...

Distillation. ...

Iodine Addition. ...

Solar Purification. ...

Clay Vessel Filtration.

Explanation:

Hope it helps