Pollution is always a good way to go but you don't have to do air pollution you can do water pollution or both air and water pollution.
The enzyme responsible for facilitating hydrogen bonding between nucleotides in a new DNA molecule is Polymerase.
C. tRNA
The ribosome binds to mRNA at a specific area. The ribosome starts matching tRNA anticondon sequences to the mRNA condom sequence. Each time a new tRNA comes into the ribsome, the amino acid that it was carrying gets added to the elongating polypeptide chain.
Answer:
A. volcanic ash layers were regularly interspersed between the sedimentary strata.
Explanation:
The discovery of a fossil is a moment of accomplishment for archaeologists, hence the date dating process begins and the older the relic the greater its value for paleontology. Chemistry is present in this process, more precisely the carbon element, but other elements can be used as uranium, lead, potassium and argon.
In the case of the fossils reported in the question, to assign absolute dates to fossils in this sediment core would be most useful if volcanic ash layers were regularly interspersed between sedimentary strata because it would separate sedimentation times and allow the use of more than one element. dating, making the search more complete and the date most credible.