13. The enzyme that is directly responsible for almost all carbon fixation on earth is A. ATP synthase C. Phosphofructo kinase
B. PEP carboxylase D. Rubisco

d bonding propertys

explanation:

carbon can form so many different compounds not just with oxygen

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

: -)

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