What is the identification of a user based on a physical characteristic, such as a fingerprint, iris, face, voice, or handwriting?

Biometrics

Explanation:

Biometrics -

It refers to the method to detect any individual on the basis of face , iris , fingerprints , voice and handwriting , is referred to as biometrics .

The method is most commonly employed for the purpose of attendance of the people entering or leaving the respective place .

As each person have different voice , face , fingerprint , hence faking a biomerics is very difficult .

Hence , from the given information of the question ,

The correct answer is biometrics .

answer; negative punishment;

two jet streams that directly affect the formation of weather in the continental part are a polar jet and a subtropical jet. they are responsible for the transportation of weather systems, which directly affect people. the polar front is the boundary between cold air from the north pole and warmer equatorial air. both the polar jet and the subtropical jet blow from the west to the east, and follow the boundary between cold and warm air.

the strongest jet streams are polar jets, while subtropical jets are somewhat weaker.

the right answer is c. the polar jet stream is generaly stronger than the subtropical jet stream.