To rotate means to
a. spin around in a place
b. move around another object
c. stay in one place without moving
d. preserve or care for something

What does the word submerged mean in the following sentence? after it rained for three days in a row, the streets were completely submerged.

Reason i shouldnt turn back if i'm lost in the wilderness need fast

One of the brightest comets of the 20th century was comet hyakutake, which passed close to the sun in early 1996. the orbital period of this comet is estimated to be about 30,000 years. find the semi-major axis of this comet’s orbit. compare it to the average sun-pluto distance and to the distance to alpha centauri, the nearest star to the sun, which is 4.3 light-years distant.