Supply and demand!
If you want a lot of something cause its in high demand.
Answer:
i think the birds have the same side affect as us hope this helps
Explanation:
Definently A because you can rule all the others out if you look at map
Each era is subdivided into a number of periods. The periods of the Cenozoic, the present era, are further divided into epochs. Many divisions of the geologic time scale are based on events in Earth's geologic history. Some divisions are based entirely on the fossil record.
Mountains are created when two plates collide. When the plates converge or slide underneath each other the heat causes melting of the crust and volcanoes appear. When they cool off they become islands.
