If you are standing in the northern hemisphere during the winter A you are experiencing longer days than nights.

B you are experiencing equal hours of day and night.

С

you are experiencing longer nights than days.

D

...you are not experiencing night at all.

A. you are experiencing longer days than nights.

Explanation:

the Northern Hemisphere is leaning most away from the sun for the year. ... After the winter solstice, the days get longer, and the nights shorter.

it would lead to upper respiratory infections and pneumonia.

the cost of mining is extremely low compared to the money earned from mining, creating income to improve the environment.