Bio You are riding a bike:
How is the oxygen being used to create energy?
How is the food you choose to eat used to create energy?
Is any stored form of energy going to be converted and, if so, to what?

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

i hope this

because the light is a great source of energy for the plants to survive. (i hope this )

b. to discover aspects of the natural world.

hopefully i .