What happens to the magma if it reaches the surface before cooling?

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.

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.

Hey me with this one❤☺❤ how do you say that a cell also has a life span and death like an organism? give one example.