The development of the horse in the fossil record shows
The horse walked upright
The horse started out the size of a small dog and evolved to the larger modern horse
The modern horse evolved from mules
The modern horse was once related to bears

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.

carbon atoms, hydrogen, oxygen, and nitrogen.

protistas excret ethanol used in the manufacture of vinegar