<span>A: Crude oil, an important source of energy, is now extracted from beneath the ocean floor.</span>
One landform found in Mexico is volcanoes, also mesas and buttes and canyons like the Canon del Cobre in I believe the province of Durango up on the interior plateau so it definitely has a variety of landforms which reflect that it is on the circum-pacific ring of fire and also is partly quite arid.
Answer:
Label A is Carbon Dioxide and Label B is Oxygen
Explanation:
