Choose the correct answer to complete the sentence. you find some smooth, rounded rocks that are scattered around the ground. you are told they blasted out of a volcano several hundred years ago. these rocks can be any of the following type of rock a. volcanic bombs b. igneous rocks c. lapilli. d. solid aa lava

Which lists the main components of darwin’s theory of evolution? a. random mutations drive evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms do not change. b. natural selection drives evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms change over time. c. natural selection drives evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms change over time. d. random mutations drive evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms do not change.

Ahot-air balloonist, rising vertically with a constant speed of 5.00 m/s releases a sandbag at the instant the balloon is 40.0 m above the ground. after it is released, the sandbag encounters no appreciable air drag. compute the velocity of the sandbag at 0.250 s after its release.

In a voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.