Mining and Erosion are basically the two main techniques <span>that are used for these fossils to become exposed.
Mining is the extraction of minerals .
whereas
Erosion is reaction of the surface processes
hope it helps</span>
The answer would be:
B. Sequence of the bases in DNA molecules.
Here is more about your questions:
DNA contain the instructions of the traits of an organism. Most of the organism have the same DNA but what makes each different is the sequence of the DNA. The sequence gives the instructions for the production of amino acid that will produce, which in turn determines what traits will be passed on or manifested by that individual.
The correct answer is B.
When your body and mind are fatigued you are out into a field of fuzziness. When dealing with extreme fatigue, there is the obvious problem of falling asleep in the road, which could result in terrible and most likely fatal accidents. But there are also other problems mentally and visually that can occur that would impair your driving ability when facing extreme fatigue.
I hope this helps! :)