The rate of natural increase refers to the difference between the number of live births and the number of deaths occurring in a year, divided by the mid-year population of that year, multiplied by a factor (usually 1,000). It is equal to the difference between the crude birth rate and the crude death rate.
Your answer would be Tectonic.
Tectonic plates move in various directions, and move slowly. Due to the movement of tectonic plates the earth cracks, and shakes which is called an earch quake. Tectonic plates move constently everyday, and you can't feel it because it's slow. Wehn tectonic plates move quickly, the earth starts to shake. The most common places that have tectonic plates have a higher chance of having an earthquake, even a tusnami.
Seasons<span> happen because </span>Earth's<span> axis is tilted at an angle of about 23.4 degrees and different parts of </span>Earth<span> receive more solar energy than others. ... Around the June</span>solstice<span>, the North Pole is tilted toward the Sun and the Northern Hemisphere gets more of the Sun's direct rays. I hope this helps out have a good day and good luck on your work!!!
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Answer:
North American Tectonic plates
