Answer:
Option d: All of the above
Explanation:
Visual aids are simply devices or tools used to make difficult things to be simple and for ease of understanding of message being passed.
The main Purpose of visual aids is to speed comprehension and listener's interest, improve audience memory recall of content, decrease presentation time and others. It help keep everyone on the same page of understanding concepts with lots of working parts. The types of visual aids includes objects, models, and handouts, Flip charts & posters, marker boards & chalkboards e.t.c
Answer:
Biofuels may be cleaner and more sustainable than jet fuel.
Explanation:
Personally, I believe that sustainability is more important than financial stuff and has a longer-lasting impact.
Answer:
Forest fires are a natural and necessary part of the ecosystem. Even healthy forests contain dead trees and decaying plant matter; when a fire turns them to ashes, nutrients return to the soil instead of remaining captive in old vegetation. Fires are a great way of clearing out the clutter. They can break down nutrients and minerals in burning plants and other debris such as old logs, leaves and dense undergrowth and restore them to the soil, thus making for a more fertile area.
Answer:
I would say that it is a pessimistic tone that shows the hopelessness of the situation.
Hope this helped!