Which continents contain fossils of mesosaurus, an extinct reptile, in similar regions of pangaea? check all that apply. africa eurasia australia north america south america

(A) Africa

(E) South america

b.

developed countries have tended to improve the environment, while developing countries have tended to damage it.

which elements do geologists measure to determine the age of an organism’s remains? check all that apply.

carbon-14

nitrogen

carbon-12