What is the main difference between primary and secondary succession? A The climax of primary succession is pine forest
B Primary succession begins with bare rocks
C Secondary succession begins with mossed and lichens
D Secondary succession include frequent fires

Haley rubs a cotton cloth along a plastic strip. the plastic strip becomes positively charged. why did this happen? a. the plastic strip gained protons from the cotton. b. the plastic strip lost protons to the cotton. c. the plastic strip gained electrons from the cotton. d. the plastic strip lost electrons to the cotton.

Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 10.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.90 m/s; (b) he is then lifted at the constant speed of 4.90 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 68.0 kg rescue by the force lifting him during each stage?

You are about to open a container of soy milk but notice that there are instructions to “shake well before serving.” the soy milk is most likely a