Sand on a beach is covered by other layers of sand over time. the extra layers compress the first layer, packing it tighter and tighter. over time, the bottom layers of sand have formed into sandstone, with colored bands showing the different layers.
what kind of rock can sandstone be classified as?
a. igneous rock
b. volcanic rock
c. sedimentary rock
d. metamorphic rock

The radius of a sphere is increasing at a rate of 9 cm/ sec. find the radius of the sphere when the volume and the radius of the sphere are increasing at the same numerical rate.

The flame produced by the burner of a gas (propane) grill is a pale blue color when enough air mixes with the propane (c3h8) to burn it completely. for every gram of propane that flows through the burner, what volume of air is needed to burn it completely? assume that the temperature of the burner is 195.0°c, the pressure is 1.05 atm, and the mole fraction of o2 in air is 0.210.

Hello i am required to make a physics experiment plus powerpoint presentation. i want to see your suggestions about simple topics with examples of how to talk about it in the presentation. note: any incomplete answer will be reported.