What element acts as a fire extinguisher for all stars?

How far is the region from the equator or control climate

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

Nuclear decay is the spontaneous decay of one element into a. an x-ray b. a ray of light c. another element