Which of the following is true about the simple machine shown in red

a. it shortens the distance needed to carry objects into the truck

b. it reduces the weight of objects being carried into the truck

c. it reduces the size of the force needed to carry objects into the truck

d. it reduces the amount of energy needed to carry objects into the truck

Which statement best describes the oxidation numbers of the atoms found in magnesium chloride? a. magnesium has a 2- oxidation number and chlorine has a 1+ oxidation number. b. magnesium has a 2- oxidation number and chlorine has a 2+ oxidation number. c. magnesium has a 2+ oxidation number and chlorine has a 1- oxidation number. d. magnesium has a 1+ oxidation number and chlorine has a 1- oxidation number.

An electrons position cannot be known precisely only it's probability of being in a certain location can be known

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