—are at risk of malaria. Every year, this leads to about 250 million
malaria cases and nearly 1 million deaths, with people living in the
poorest countries being the most vulnerable. Malaria is especially serious
in Africa, where 20% of childhood deaths are caused by the disease (i.e.,
every 30 seconds a child dies from the disease).(i) Explain how malaria is transmitted through the human population.
(ii) Identify TWO environmental factors that contribute to the
emergence of malaria and explain how those factors influence the
increase in the incidence of the disease.
(iii) Traditionally, the spread of malaria was controlled by the use of
pesticides such as DDT. However, DDT and other pesticides often
have negative environmental impacts. A promising alternative to the
use of pesticides is biological control. Describe biological control
and provide ONE example of a biological control method used for
controlling the spread of the disease.PREDICT YOUR SCORE ON THE APES EXAM
Place a check mark (✓) next to the multiple-choice questions you got correct.
Then fill in the blanks below to predict your overall score on the APES exam.
Essay questions are not used in this prediction as they require subjective grading.
You can also use this page to determine your areas of weakness. For example, if
you got 5 out of 5 questions correct on The Earth, but only 2 out of 5 questions
correct on The Atmosphere, spend some more time reviewing The Atmosphere.