Industiriaaldisaster project work​

Find the coordinates of a if b(-9,-10) is the midpoint of ac and c has the coordinates of (-1,9)

Dubai is challenged by all of the following environmental factors except a. a warm and dry climate b. a lack of annual rainfall c. scarce freshwater resources d. a lack of valuable natural resources

Explain the reason for having an equator and a prime meridian. how do these two lines us to navigate our world? describe your opinion in at least two to three sentences.