<span>Since ages in a population pyramid are represented ranging from youngest at the bottom to oldest at the top, the two graphs aligned side by side typically give the appearance of a pyramid. This is because fewer people in a population live into old age. The BBC notes, however, that it is possible to distinguish different qualities in a population through variations from the standard pyramid shape. For example, an aging population with a low birth rate would look like an upside-down pyramid.</span>
Sandy, rocky, hot, barren. Or sand dunes, plateaus.
Answer:
emissions
Explanation:
The productions and discharge of something especially gas or radiation