Which type or types of change, if any, can reach equilibrium? (1) a chemical change, only(2) a physical change, only(3) both a chemical and a physical change(4) neither a chemical nor a physical change

Layers of rock containing fossils, like the layers illustrated here, are most likely composed of rocks.

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here

Plz ill give u brainliest which of the following steps is not likely to take place during cellular respiration? a.oxygen combines with carbon of simple sugar. b. energy molecule transfers energy to cells. d. energy is used up.