Answer:
A plasmid
Explanation:
A plasmid is an extrachromosomal DNA molecule within a cell that is physically separated from chromosomal DNA and can replicate independently. -Wiki
The density decreases because you are coming closer to the atmosphere and away from the center of the earth
Answer:
Sedimentary rocks
Explanation: Where are fossils found? Fossils are found almost exclusively in sedimentary rocks—rocks that form when sand, silt, mud, and organic material settle out of water or air to form layers that are then compacted into rock. So the answer will be <em>Sedimentary</em> rocks.
There are four gas giants<span> in our Solar System – Jupiter, Saturn, Uranus, and Neptune. The </span>gas giants<span> in our Solar Systems have a number of similar </span>characteristics<span>.
hope dis helps</span>
