Which of the following describes a biotic factor that would be an advantage to a certain species of freshwater plants in a pond ecosystem? A Increased rainfall that leads to the habitat of the plants covering more area

B Reduction in the population of fish in the pond that eat plants

C Toxic waste and trash being dumped into the pond where the plants live

D Introduction to the pond of another species of plants that compete for resources

It may seem strange that the selected velocity does not depend on either the mass or the charge of the particle. (for example, would the velocity of a neutral particle be selected by passage through this device? ) the explanation of this is that the mass and the charge control the resolution of the device--particles with the wrong velocity will be accelerated away from the straight line and will not pass through the exit slit. if the acceleration depends strongly on the velocity, then particles with just slightly wrong velocities will feel a substantial transverse acceleration and will not exit the selector. because the acc