In 2-3 complete sentences, explain what this tells you about the amount of friction over each of these surfaces

Which of these statements best describes the st. lawrence seaway? the st. lawrence seaway connects the st. lawrence river with the arctic ocean. the st. lawrence seaway provides an important trading route between the u.s. and mexico. the st. lawrence seaway provides an important trading route for the u.s, but has little value for canada. the st. lawrence seaway connects the great lakes, the st. lawrence river, and the atlantic ocean.

What causes darkening of the skin as melanin production increases

Plz quick a natural resource that is replaceable through a cycle in nature or sustainable practice is called a? the subject is science