What are the effect of overuse of insecticides and fertilizers?​

Which statement is true about common childhood infectious disease? a. children should always be given antibiotics to treat an infectious illness. b. frequency of infectious illnesses usually increases as children grow older. c. having a minor infectious illness weakens a child's immune system. d. infectious illnesses are usually mild and require no medication.

What would happen if you ate the number of calories of someone who is much taller and more active than you are?

How can people get cancer? what types of cancer are there? plz i’ll mark u brainliest