Which is an example of kinetic energy?
A.
a stretched rubber band
B.
wind
C.
water in a reservoir
D.
natural gas
E.
an object suspended above the ground

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes