Which best describes floods hurricanes and earthquakes A. infectious outbreaks
B. natural disasters
C. chemical disasters
D. Mass power outages

Which action is characterized of mental illness 1.brushing teeth every hour because ones mouth feels dirty ? 2. forgetting to eat breakfast on a busy day? 3.crying three days over a relationship breakup? 4.feeling embarrassed about going to school after failing in front of friends?

True or false mucous membranes destroy pathogens on the outer body surface, at body openings.

Viral infections in plants ) can be controlled with antibioticsb) can spread within a plant via plasmodesmata c) have little effect on plant growthd) are not spread by animals