The makeup of air/atmosphere,can change the pH.
For example, when the USA relied heavily on coal fired electric generating plants the air became acidic.
This polluted air would drift or be blown around the continent. When the rains came, “acid rain” would overwhelm many trees and other vegetation, harming it.
See pasted in below:
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
This would be a legato. Which is referred to as a playing melody in a smooth connected style :)
C because you are reflecting, like the translation in math.
Answer: Natural selection genetic drift and gene flow are the mechanisms that cause changes in allele frequencies over time. When one or more of these forces are acting in a population, the population violates the hardy- weinberg assumptions and evolution occurs. There is also know way to tell how p and q willchange