How do paragraphs 18-20 contribute to the development of the theme? A. They illustrate that the people do not know what will result from their actions.
B. They demonstrate how dangerous the hole is to human life and why it must be
filled.
C. They give an example of how changes in the environment can positively affect
human beings.
D. They show how people that live in close contact with nature are better able to
understand natural changes.

i believe it true i guess because you are the one that is writing so you should know what you are putting in your essay.

the following key ideas correctly express the key sentence.

restate key idea: most people can learn to swim in ten short lessons.

restate key idea: the majority of water-accident victims require mouth-to-mouth breathing.

restate key idea: an empty, tightly closed gallon jug will support a tired swimmer.  

restate key idea: first aid is to prevent accidents as well as assist in rescue.

explanation: the key idea needs to have the same topic as the key sentence (drowning and safety).

the answer is option 1

explanation:

anits the secound1

explanation: