Answer: With a fingerprint a family can check their genetic makeup.
Explanation:
DNA fingerprinting is a chemical test that shows the genetic makeup of a person or other living things.
Colder climates give the people longer noses so the air has a good time to warm up before going into the lungs. places with more light or sun had more pigmented skin to protect from the rays and getting burned
The lake bottom is lined with rocks because an abiotic is a non-living thing in an environment while biotic is a living thing in a environment
A converging lens focuses the diverging, or blurred, light rays from a distant object by refracting (bending) the rays twice. ... This double bending causes the rays to converge at a focal point behind the lens so that a sharper image can be seen or photographed.
(Thus making the vision clear)