The plus signs in the diagram above indicate the concentration of a particular pollutant that exists at each level of the food chain. What concept is being demonstrated by this diagram?
A) Bioaccumulation
B) 10% energy rule
C) Biomagnification
D) Food chain instability

the circled areas are referred to   as sunspots.   the sunspots are cooler than the   surrounding area.

sunspots are temporary phenomena on the photosphere of the sun that appear visibly as dark spots compared to surrounding regions. they correspond to concentrations of magnetic field flux that inhibit convection and result in reduced surface temperature compared to the surrounding photosphere.