Answer:
I think it is 180 degrees.
Explanation:
The Answer is True........................................................
C.
EXPLANATION
Mainland Greece is a mountainous land almost completely surrounded by the Mediterranean Sea. Greece has more than 1400 islands. The country has mild winters and long, hot and dry summers. The ancient Greeks were a seafaring people.
-http://www.ancientgreece.co.uk/geography/home_set.html
A)......they were introduced for biological control in waste treatment facilities and ponds but then they got out due to a major flood into the waterways and took over everything becoming the dominant species
