Dichotomous keys split choices into two/three/scientific parts.

The many volcanoes located along the edge of the pacific ocean make up the ring of fire. how does subduction play a role in the volcanic activity in the ring of fire?

The buildup of sediments where a river empties into a slow-moving or nonmoving body of water is known as a/an

Which of these is most likely to happen if parallax measurements of star distances are taken after a gap of six months? the results would be accurate the results would be inconsistent the results would not be valid the results would not be repeated