Earthquake data provided courtesy University of Utah. Yellowstone is one of the most seismically active areas in the United States. Approximately 1,000 to 3,000 earthquakes occur each year in the Yellowstone area; most are not felt. They result from the enormous number of faults associated with the volcano.
What are the effects of environmental pressure on natural selection? A: Environmental pressure is another term for natural selection, a process that encourages some genes to survive because they are conducive to the environment while others die. This process slowly causes a distinct species to evolve over time. Continue Reading.
Pressure is not a fixed value; rather, it varies with environmental factors, such as altitude and temperature. Atmospheric pressure is also known as barometric pressure or air pressure. Simply put, it is a force exerted by the weight of the atmosphere pushing down on a given area. The standard pressure on earth at sea level is 101.325 kPa by definition. However, different climatic conditions will change the air pressure of different regions. Temperature changes will cause changes in air pressure.