I need help pls anyone know this ive been stuck for 10 mins so pls

Explain why in any given geographical region, women tend to have lighter skins( by 3-4% on average) than men?

Which element provides strength to the exoskeleton of clams and oysters

Jasmine, at 33 months of age, is able to engage in some self-care behaviors but still has trouble with tasks such as putting on socks. a few months later, she accomplishes this same task relatively easily. the change in abilities is most likely due to