What type of material can make up a mudflow?
a. trees
b. boulders
c. soil
d. all of the above

What does x represent in the formula for the compound xcl4?

The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the independent variable in galileo's experiment? a. the speed of the ball b. the slope of the plane c. whether the ball moved d. what the ball was made of

At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver