Which of the following has had the greatest effect on ozone depletion?
a. water vapor (h2o)
b. carbon dioxide (co2)
c. carbon monoxide (co)
d. chlorofluorocarbons (cfcs)

How are gene and protein sequences used to classify organisms?

Biology ! the conversion of inorganic carbon to organic carbon by plants during photosynthesis is known as _[blank]_. filtration immigration reabsorption primary production

What is one affect on the australian environment due to the introduction of non-native european rabbits