Which sphere allows the human breathe oxygen from the air to the lungs that involves matter starting and ending ?

How are extrusive rocks formed? magma gets trapped inside earth and cools to rock. volcanoes apply force to solid rocks and eject them. magma gets forced to earth’s surface and cools to rock. volcanoes trap lava inside earth, where it cools to rock.

Which kind of aquatic ecosystem does the photograph most likely show? a. marsh b. swamp c. lake d. river

The relationship between intron and exon