Shah contrasts measles and smallpox with malaria to show that all three diseases became milder over centuries. The text describes cause-and-effect relationships to show why malaria continues to persist in human populations. Presenting malaria’s history in chronological order helps readers understand how long it has remained a threat.

Shah contrasts measles and smallpox with malaria to show that all three diseases became milder over centuries.
True
False

The text describes cause-and-effect relationships to show why malaria continues to persist in human populations.
True
False

Presenting malaria’s history in chronological order helps readers understand how long it has remained a threat.
True
False