GPS, Glonass are the most popular
D, motion of tectonic plates
Answer:
The correct answer is U.S
Explanation:
The Deciduous Temperate Forest or Stylist is a type of temperate environment that can be found in the United States, Canada, China, Europe, Japan, Russia and Korea. It is typical of the areas near the polar circle. The trees of this ecosystem lose their leaves in winter time and reappear in the rainy and dry season. Due to its great extent, the United States has the vast majority of this type of forest, followed by Canada.
The speed of a wave measures how far one particular crest (or trough) moves in a given amount of time. The speed of the wave changes according to the following equation:
v = λ
* f
According this equation, it follows that as the speed and length of a wave decreases, the wave grows higher (the higher the frequency).
