4. according to the principle of cross-cutting relationships, if an igneous intrusion cuts across a layer of schist, the igneous intrusion is than the schist. a. more dense than b. the same geologic age as c. older than d. younger than

#4.) describe the most likely weather conditions at indiana / ohio boarder. also could someone double check my other answers? i'd really appreciate it

All of the following statements about the biosphere are true except: a. light and heat from the sun do not affect the biosphere. b. the biosphere gets resources from earth's crust, hydrosphere and atmosphere. c. like "biology", the name for the biosphere comes from the greek word for life. d. the biosphere includes all living organisms on earth's surface.

What was the great rift valley formed by