Earth Day Crossword

Things like air,water and soil together
Layer of gases surrounding a planet
To process used goods or waste so as to produce something that is often better
To make something new out of used object
The surroundings or conditions in which a person,animal or plant lives
The natural home or environment of an animal,plant or organism
a layer in the Earth's atmosphere
Trash on the ground
A substance discharged into the air
restored or replaced by natural process
Capable of being supported
Made without chemicals
Mixture of various decaying organic substances
Sun energy
Doesn't exist anymore
To keep something in its original state
To protect something
Deals with the relations of organisms to one another
A place to dispose of garbage and other waste material
Contamination of water and air with harmful substances