Which describes an impermeable rock where oil and natural gas deposits are found? O It has pores large enough to allow absorption
O It traps the deposits inside them.
O It is made up of porous materials
O It only allows certain materials to pass through.

Why does the sun appear to be the brightest star in the sky? a- its apparent brightness is much greater than other stars. b- it burns more gas, making it brighter than any other star. c- it is the largest star in the galaxy, so it is the brightest star. d- its relative distance to earth is closer than the other stars.

Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?