Malaria was once prevalent in Europe and the USA in the early 1900s but was successful eliminated from these areas. However, malaria is still prevalent in the tropical regions i. e. parts of Asia, Africa and South America. Is it correct to say that Malaria is a disease of poverty

Yes it is correct to say.

Explanation:

The disease in the question, malaria, is an infectious disease what is mosquito borne and its symptoms start from fever, headaches and goes up until death.

There is no direct correlation between poverty and the disease but there is an indirect one. Since these poor countries in Asia, Africa and South America are dealing with poverty, this causes the invertentions for the spreading of the disease, the general knowledge of the public, the healthcare and the treatment of the disease to be low and therefore malaria is still provalent in these parts of the world.

I hope this answer helps.

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".