I need help asap PULMONARY CIRCULATION

when we talk about ‘pulmonary’ we are talking about .
can someone fill in the black for me

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 are two ways in which waves erode the land?

Which prefix mean under less or below