The polar jet stream is an air current that flows across North America. It flows much faster in winter than it does in summer. Why is it faster in the winter?

A: Northern air has more oxygen in winter.

B: Northern air is warmer in winter.

C: Northern air is colder in winter.

D: Northern air is drier in winter.

Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

Calculate the mass of silver needed to react with chlorine to produce 126g if silver chloride?

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.