unit 5

Question 1

atmosphere

Answer 1

the mixture of gases that surround a planet

Question 2

hydrosphere

Answer 2

all of earths water taken together in all states of matter

Question 3

geosphere

Answer 3

the solid portion of earth including rocks soil mountains and materials deep within Earthy

Question 4

biosphere

Answer 4

the system that includes all the living things on earth

Question 5

recycle

Answer 5

to use the materials in old things to make new things

Question 6

green technology

Answer 6

innovative ways of using resources that minimize human impact on the enviroment