What does impairment mean? A a special talent or ability
B an injury or weakness
C the desire to overcome a flaw
D resistance to disease

B) an injury or weakness

Explanation:

Impairment means when something can not work or function correctly, especially if you are reffering to the organs in the human body. For example, certain dieaseses can cause cardiac arrest. Then, the organ that gets targeted might have chances of becoming impaired.

14 chromosomes

explanation:

sperm cells of the russian dwarf hamster contain 14 chromosomes. how many chromosomes are found in a normal body cell of the russian dwarf hamster? a cell with 20 chromosomes undergoes mitosis.

the legal limit for the drivers who can drive after consuming any amount of alcohol is 21 years.

explanation:

on november 1, 1996, a "zero tolerance law" was put into effect in the new york state.

according to this zero tolerance law, for people under the age of 21 years, it was illegal to purchase and possess alcohol or to drive after consuming any amount of it.

also, the alcohol involvement rate for the drivers under the age of 21 was roughly twice that of elderly drivers.