In winter time herds of cattle often stand close together this helps them get warmer because?

They have a thick coating I them

so when they stand close to each other, it's harder for the hot molecules to enter their body

Explanation:

"Livestock will huddle together to conserve heat and insulate the herd. These natural instincts prevent the animal's internal body temperature from dropping to hypothermic levels."

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.

the supermassive black hole is in the middle of the galaxy.