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

Eastern europe and parts of northern europe have which of the following climates?

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.

Alow pressure system is formed when an air mass cools over a cool surface and sinks. true or false