It depends on the indicator type; typically if it is darker in some way, it is positive
Wash hands
wash fruits vegetables etc..
cool to the right temperature
keep certain types of food separate
<span>d. disease reporting</span>
Answer:
Sickle cell trait has been observed in regions where malaria is common for over 50 years and has since become renowned for its perplexing ability to protect its carrier from malaria.
Explanation:
Their failure will adversely affect our ability to control malaria.
