The kind of wave that has compressions and rarefactions is a/an wave

The kind of wave that has compressions and rarefactions is a longitudinal wave.

A longitudinal wave is a wave that moves in the direction of wave particles, it moves based on the direction and motion also referred to as propagation.  This can cause refractions and compressions.

the journeys of marquette, joliet and la salle a) new france expand.

all three of these explorers explored the midwest and the area around the great lakes, which they subsequently claimed for france.

this was a big portion of territory and expanded new france which before then only consisted of quebec province in northeastern canada

3. dark matter

empty space could also be a simple vacuum