spheres
number factors
chemicals
physics
100

Earth operates as a..?

system

100

the difference between true poles and magnetic  poles (in degrees)

11 degrees 

100

what form do of oxygen do animals need

o2

100

define force

 a push or pull caused by a change in motion

200

name a cycle important to the biosphere

nitrogen, slow carbon, energy, and fast carbon.

200

how long is the bow shock 

40,000 miles


200

chemical formula for nitrogen gas

n2


200

what materials are magnetic?

some metals and magnets 

300

name the abiotic factors

air, water, temperature

300

what percent of the human body is nitrogen?

 18%

300

in aurors what makes the green colors

oxygen molecules 

400

define interdependent 

spheres interact with each other and rely on each other

400

co2 is increased by what?

40%


400

biosphere and atmosphere exchange what?


carbon dioxide and oxygen

500

what do decomposer do

decomposers breakdown dead animals and plants 


500

what percentage of human caused emissions are absorbed in oceans?


30%


500

in aurors what makes the red blue

nitrogen