The carbon footprint of an activity is used to assess environmental pollution. what does it measure? a. nitrogen oxide b. carbon molecules c. greenhouse gases

Honestly, you'd measure all of them but when people talk about cars, A/C units, or anything like that, it would be nitrogen oxide. green house's don't produce as much of a foot print mainly because they house plants which provide oxygen but they are filled with carbon monoxide so if you have any other information that would help but if not, I'd go with A

human-caused climate hope this

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products