The best cause is erosion creating waves and pushing forward the line where the sand starts
Answer:
embryonic
Explanation:
In the embryonic stage which comes after fertilization the organs and the tissue starts developing. This stage lasts till the ninth week after the fetus has been conceived.
There is rapid cell division that takes place in the cell. The gamete goes through the following stages in the embryonic period cleavage, blastula, gastrulation, and organogenesis.
Hence, the statement is referring to the embryonic period.
The answer is cyclical unemployment.
I hope this helps!
