TRUE IS YOUR CORRECT ANSWER.
Answer:
The water is likely to be dirty or not clear enough. I mean, if you through a key into the body of water, you can't see the key at the bottom of the water body because of impurities which make the water look dirty or not visible or transparent enough.
Explanation:
<span>Molecular clocks use rates of mutation to measure
evolutionary time. Mutations add up at a fairly constant rate in the DNA of
species that evolved from a common ancestor. The more mutations that happened
in each lineage, the greater is the differences between these lineages.</span>
