Normal, clean rain has a pH value of between 5.0 and 5.5, which is slightly acidic. However, when rain combines with sulfur dioxide or nitrogen oxides—produced from power plants and automobiles—the rain becomes much more acidic. Typical acid rain has a pH value of 4.0.
That they produce only through anaerobic respiration.
Answer:
hunting.
Explanation:
over 50 years canada's population has risen and along with a bigger population comes more hunters
When large pieces of the Earth's outer layer move slowly by plate tectonics, surface features, such as mountains, earthquakes and volcanoes, are formed
Loss of genetic variation.
Hope this helps!
-Payshence
