10. A student made peanut butter bars by pressing a layer of graham cracker crumbs into a baking pan. Next, the student

added a layer of a peanut butter mixture and then added a layer

of crushed peanuts. Lastly, the student added a layer of

chocolate frosting.

The process of making peanut butter bars is most like the

formation of what type of rock?



Sedimentary Rock

Explanation:

A Rock are commonly known as minerals that has aggregated e.g mineral grains particles of other rocks, or organic matter.

Sediment are a tiny or Little portion of organic or inorganic material that are carried and deposited by wind, water, gravity, or ice and that accumulate in layers on the Earth's surface. Sedimentary Rock are commonly known as a type of rocks that is brought about from other rocks and minerals. Sediments includes Loose pieces of rock, sand, dust, clay, or dirt. Sedimentary rocks make up 5% of the Earth's crust but these rocks cover 75% of the Earth's surface.

Formation of Sedimentary Rocks

1. Weathering of pre-existing rocks

2. Transportation-(erosion) of sediment to a new site

3. Deposition of the eroded material

4. Compaction of eroded material and others.

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."