1)How do populations of invasive species continue to grow, and disrupt ecosystems? 2)What are natural factors that can cause the introduction of invasive species?
3)How do most invasive species introductions happen?

Dr. arenas is a scientist who has been trying to determine if increasing pressure will increase the sound that occurs when two chemicals explode. it measures the volume of the sound that occurs at the minimum pressure at which the explosion will occur. it then increases the pressure and measures the volume of the explosions that occur. what kind of investigation is the scientist conducting?