Answer:
B) Category B
Explanation:
Centers for Disease Control and Prevention along with US Department of Homeland Security has classified biological agents into three categories based on the level of mortality, ease of spreading and the level of preparedness required to deal with them. These biological agents are mostly microorganisms which if not controlled can create a havoc on a big scale.
Category B consists of agents which have moderate potential for dissemination. These are the agents which effect food and water quality and lower down their safety levels. They moderately affect the population and mortality rate is low. However, uncontrolled they can spread and effect many people. For example, salmonella and zika.
The answer to this question is "immerse in cold water". What the responder or the person injured must do upon encountering or experiencing a first-degree or second-degree burns with closed blisters is to immerse the affected surface in a cold water. This will avoid further damage to the skin cells and tissues.
Waste/toxins would not be able to leave the body. The kidneys filter out the waste and eliminate it through the urinary tract.
The waters of the Gulf of Mexico looks brown because of the sediments coming from nearby rivers. It is basically an ocean basin, so it receives waters from different bodies of water. These sediments come from decayed matter like rocks, aquatic plants and wastes from aquatic organisms. It can harm freshwater fishes but some plants could thrive in that condition. As for humans, it is not safe to drink the water with high turbidity. The water is deemed not potable because it might contain harmful bacteria that could lead to digestive diseases.
Embarrassment, envy, anger.
