Answer:
is an acidic colorless gas with a density about 53% higher than that of dry air. Carbon dioxide molecules consist of a carbon atom covalently double bonded to two oxygen atoms.
Explanation:
The answer is B An observation about the number or amount of something
Answer:
C.
Explanation:
Absolute dating is defined as the method used to determine the age of biotic or abiotic things on a specified chronology in geology and archaeology.
Layers of the soil are used to determine the age of a geologic event is not a form of absolute dating because the deepest river deposits in the specific basin is used to determine the geological event.
So, the deposits of soil are used to tell the the age of a geologic event and not the layers of soil.
Hence, the correct option is C.
Answer:
because every year there is a new strain of flu
Explanation:
A host cell is the answer.
