Which of the following is not considered to be a rock

A (coal) B (sandstone) C (pumice) D (lava)

When a 85 kg man sits on the stool, by what percent does the length of the legs decrease? assume, for simplicity, that the stool's legs are vertical and that each bears the same load?

How does a scrap heap magnet work? (In detail)

Humans start from a single cell. Eventually, as cells divide, they start to differentiate, or specialize. Some cells are specialized for movement of the human body. What type cells would these be?

What Do You Already Know about Density? Material Design. Number each material and sort the items in order from lowest (1) to highest (7) Density. -Chalk -Copper -Flour -Dry Beans -Talcum Powder -Wax -Wet Sand

What is the weight of a 45.40 kg barbell dropped on earth

Three liquids are at temperatures of 5 ◦C, 25◦C, and 34◦C, respectively. Equal masses of the first two liquids are mixed, and the equilibrium temperature is 17◦C.

The air you breathe is an example of a (n) ?

How do fluids move? Explain.

How does the interior of the earth relate to what occurs on the surface?

If a atom loses a neutron what happens