Examples of reflection. Plane wave, plane surface. The phase of the reflected sound waves from hard surfaces and the reflection of string waves from their ends determines whether the interference of the reflected and incident waves will be constructive or destructive.
The tendency to develop allergies is often hereditary, which means it can be passed down through genes from parents to their kids. But just because you, your partner, or one of your children might have allergies doesn't mean that all of your kids will definitely get them, too.
Allergy-Related Asthma. Some people who suffer from allergies also suffer from asthma. In fact, exposure to an allergen can cause such a person to have an asthma attack. Therefore, avoidance can be part of the prevention plan for this asthma type.The person should avoid allergens such as ragweed and pet dander that may aggravate the condition.llergy-Related Asthma. Some people who suffer from allergies also suffer from asthma. In fact, exposure to an allergen can cause such a person to have an asthma attack. Therefore, avoidance can be part of the prevention plan for this asthma type.