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describe how the distribution of malaria might change if the world gets warmer

one way of preventing the spread of malaria is by draining swamps. explain why draining swamps can .

in the past, some people thought that malaria was caused by harmful gas from swamps. to protect themselves, people would put nets around their beds to keep out the harmful gas. using nets around beds reinforced the incorrect idea that malaria is caused by harmful gas. explain why.