I am not too sure, but I believe it is because DNA is actually apart of living organisms along with Protein. So it can't only be compared with dead organisms but they can be living.
<u>Hope this helps!</u>
Answer: volcanoes
Explanation: geothermal electricity- generating plants are most commonly located around the Ring of Fire, which is a hotspot for volcanoes.
ocean - Large bodies of water.
current flowing towards equator carry cold water from poles
current flowing towards away from equator carry warm water from poles
Example - Humidity
