Which statement is true? a. the rocky mountains extends from northern canada all the way through the united states. c. the mississippi river extends from northern canada all the way through the united states. b. canada and the united states share no landforms, rivers, or lakes. d. canada and the united states share no regional characteristics.

Tori is researching for her blog post about how wearing sunblock can prevent skin cancer, and she finds a page about her topic on the united states centers for disease control website at is this a reliable site for tori’s research? yes, because it is presented by a college or university no, because it is a personal opinion about the subject yes, because it is run by a governmental organization no, because it is intended to advertise a certain product