This polynomial is represented in descending powers.

He was demoted.

He was demoted because of his poor performance.

Due to the economic crisis, the company decided to reduce everyone's salary.

His salary was reduced because the company's financial situation worsened.

The gutter was clogged, and the rainwater overflowed.

I can hear the sound of the May rain hitting the window.

The May rain has started to fall.

I can hear the sound of the May rain hitting the window.

Acid rain destroys forests and has a serious impact on ecosystems.