How does the washing of hands prevent a societal problem?
a. it keeps water supplies clean.
b. it treat inherited disease.
c. it protect the environment.
d. it reduces the spread of disease.

5. how can you decrease the pressure of a gas in a container without changing the volume of the gas?

Rocks, as they are compressed, begin forming mountains above the earth's surface when two continental plates converge. the continental crust increases in depth as the mountains grow above. the himalayan mountains formed at a convergent plate boundary in this manner. the rocks are smashed together causing them to due to the intense heat and pressure from the colliding plates and eventually forming rock. a) melt; igneous b) layer; sedimentary c) recrystallize; metamorphic d) melt into the earth's interior; metamorphic

The atomic number, or number, is the described as the number of in the nucleus of an chemical element.