All of the following statements about the atmosphere are true except:
a. the biosphere includes all living organisms on earth's surface.
b. like ''biology'' the name for the biosphere comes from the greek world for life.
c. light and heat from the sun don't affect the biosphere.
d. the biosphere gets resources from earth's crust, hydrosphere and atmophere

c. Light and heat from the sun don't affect the biosphere.

Explanation:

The biosphere is the sphere where living beings such as plants, animals, microbes, humans and others survive, reproduce and lead their life cycle.  

The atmosphere is a sphere of the earth. It consists of collection of different gas called as air. It protects the biosphere by absorbing the incident harmful radiations along with heat coming from the sun.

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

if you need further assistance, let me know: )

~ trueboss72