In 10 minutes a heart can beat 700 times. at this rate, in how many minutes will a heartbeat 140 times? at what rate can a heartbeat?

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.

Political boundaries are determined by the political party in control at the time. true or false

The meseta in spain is a a. navigable river b. castle c. coastal plain d.plateau