Conductive hearing loss is when sound cannot reach the inner ear.
Sensorineural hearing loss happens when the sound is not able to be processed correctly.
Answer:
The forestry department is using a<u> 1. </u><em><u>chemical method</u></em><u>.</u> This involves using a 2. <em><u>foliar spray</u></em> method, in which department personnel will spray directly on trees' leaves.
Explanation:
- White pine blister is a fungal disease of plant caused by fungus <em>Cronartium ribicola.</em>
- This fungus infects the plant through the stomata of the leaves.
- There are several methods of controlling pests and pathogen in agriculture which include ; mechanical methods; chemical methods and Biological methods.
- Mechanical methods include constructing barriers, electrical fencing etc.
- The biological method include introduction of organisms that will suppress pathogen activity.
- Chemical methods include use of pesticides , that are poisonous chemical substance that will kill the pathogen.
- Here the forestry department decides to spray insecticides thus, they are using a chemical method.
- Secondly they are going to spray the insecticide on each leaf so they have chosen the method of foliar spray and not the cut stump treatment or basal bark method.
