Which air mass often originates as a different air mass in siberia and is subsequently altered? a. mt b. cp c. mp d. ct

C. m P

Explanation:

Due to the extreme low temperatures were generated by the air blowing from Siberia to particular direction.  But almost  in parallel direction.

The correct answer is option B. "cP".

Explanation:

The Continental polar (cP) air mass, also known as continental arctic (cA) air mass, is characterized by having a cold, dry and stable trajectory. The cP air mass originates  in Siberia, as well as northern Canada and Alaska, as a result of radiational cooling. Just like most air masses, cP air mass is subsequently altered once it leaves its origin by moving into places where the sun angle is higher.

a chair, a bed, and a toothbrush

explanation:

the framers of the constitution insisted that federal judges be nominated instead of elected due to their desire to have judges above the shifting whims of the masses.

the hope, whether achieved or not, was that federal judges would only be beholden to the law and that by not having judges be elected, they would be protected if that law dictated an outcome that ran counter to popular opinion.