Which of the following is considered an alternative energy resource?
a. coal
b. biomass
c. petroleum
d. natural gas

once again, not smart enough to figure this out. (xd)

The isotonic saline solution described in part a is connected to an unknown solution via a semipermeable membrane, the unknown solution level drops. based on this information, what can be said about these two solutions?

Iknow #2 is d. i just need to know why

Jessica is traveling from miami, florida, to chicago, illinois. using the map, tell one way the land will change during the second half of her trip.