Which substance is a compound?
water
gold
oxygen
hydrogen

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.

If jane has the blood type ab and marries john who has type o blood what are the possible phenotypes of their first kid?

What is the identity of the planets?