Answer: The answers are: Leave the location, suggest another activity and notify the authorities if all else fail.
Explanation: Harmful substances refer to substances that are hazardous to humans. These elements are not good for human consumption and as a result they should not be consumed by humans. They are also dangerous to human health. Examples are food, water, drugs and so on that are unfit for human consumption. Some of these harmful substances can cause asthma or other diseases.
The difference between vitamins and minerals has to do with their chemical structure. Vitamins can be broken down, but minerals are inorganic and cannot be broken into smaller chemical units.
