One could be the lighting of a firefly, because there is a chemical reaction that happens inside of the firefly that makes it glow, and another could be making food, because you have to add baking soda in some foods, and it reacts with other ingredients. Hope that helps.
Answer:
d. All of these
Explanation:
A timeline can be defined as a graphical representation of a series of important events in order in which they have occurred i.e in a chronological or sequential order. Thus, a timeline shows the order of events from top to bottom or left to right, starting with the earliest and moving forward to the most recent (latest).
Generally, a timeline is typically considered to be a cause and effect graphic organizer due to the fact that it illustrates events in a chronological or sequential order, their place in history, and how these events are interrelated or led to another.
This ultimately implies that, timelines show;
a. The order of events.
b. An event’s place in history.
c. Why an event may have taken place.
<em>For example, a timeline can be used to show the order in which the various battles fought during the American Revolutionary War occurred. </em>
Answer:
The cost of production and using more efficient resources
