DNA/fingerprints are all unique, therefor it is easy to match a fingerprint to a person thus they use this mechanism in criminal investigations because only one person woul have matching DNA to the prints on the scene, and that is the criminal.
Hope this helps :)
It could occur after a forest fire or flood.
Answer:
Option C, The particles of air move freely, colliding with each other and the sides of the balloon
Explanation:
The air molecules exert force on the inner surface of the balloon due to which the material of the balloon stretches and it increases in size. If air is blown in large extent, it will exert more force on the balloon material thereby extending it to a larger extent but when air is blown in a smaller amount, the size of the balloon increases by a smaller extent.
Hence, option C is correct
Answer:
Desert animals must cope with two things; temperature extremes and lack of water.
Explanation:
Therefore, most adaptations in desert animals, while they may seem bizarre, serve the purpose of helping that animal cope with these two problems. Both are important. Water is necessary for life, and balancing the water budget is essential for desert animals.
Answer: A. It showed how the red scare had influenced attitudes toward immigrants
Explanation:
There was a rise for nationalism( a negative thing mind you, that discriminates against "non-Americans") in the early 20s, and it affected most of Americas judgement of a fair trail (and treatment in general) towards immigrants.
