What is the fundamental building block of matter?
*
gold
light
energy
the atom

True or false, the three major scales used to measure earthquakes are mercalli scale, richter scale and magnitude scale

About 70 percent of the earth's surface is water-covered, and about 96.5 percent of all earth's water is salt water. identify the watery feature on earth that is made of freshwater rather than salt water. a) bay b) glacier c) ocean d) sea it is not incomplete this is the true question

Compare and contrast physical changes with chemical changes.