Algae produce: most of the earth's oxygen
all of the earth's carbon
most of the earth's carbon dioxide
very little of the earth's oxygen

Q: a pair of homologous chromosomesa) always has the same genes and the same allows b)always has the same genes c)always has the same alleles d)never has the same genes

9. wind power creates pollution. water air soil noise

Did you know that a single bee would have to go to over 2 million flowers to make a single pound of honey?