areas that have a large prevalence of malaria, such as africa, have a high frequency of children who have sickle cell anemia or are carriers of the trait. what role does the concept of natural selection play in this trend?

answer: i say it foxes

explanation:

you need to give us the answer options to for me to offical decide.

rising temperatures because when water vapor in the air is cooled, it condenses. it turns back into a liquid and attaches to dust particles in the air. these very small water droplets group together to form clouds