Answer:
A chromosome is made of a very long strand of DNA and contains many genes (hundreds to thousands). ... The genes on each chromosome are arranged in a particular sequence, and each gene has a particular location on the chromosome (called its locus).
Explanation:
I believe the answer is that the CFCs cause low ozone concentrations in the atmosphere.
Sorry if I'm wrong, hope this helps.
Answer:
The lowest region of the atmosphere
Explanation:
What google says:
the lowest region of the atmosphere, extending from the earth's surface to a height of about 3.7–6.2 miles (6–10 km), which is the lower boundary of the stratosphere.
The answer is Coral extinction. Extinction is a term that is a result to the excessive lost of organism. Coral reefs are from the shallow water corals that gro fast enough to build this huge population of reefs. They are from the single celled algae that were photosynthesized and passed to some of the food and give nutrients to algae.
It is called mechanical weathering or physical weathering.
