Choose the correct answer to complete the sentence. the animal group classified as being the most critically endangered is the

a.) birds
b.) amphibians
c.) fish
d.) reptiles

burning of wood and coal

explanation:

the panel also concluded there's a better than 95 percent probability that human-produced greenhouse gases such as carbon dioxide, methane and nitrous oxide have caused much of the observed increase in earth's temperatures over the past 50 years.