Why does the primary productivity in the gulf of Mexico fluctuate over the year?

What city is located along the Huang He? Name the 5 great lakes of Michigan? What is the port city in Texas on Gulf of Mexico? What is a large lake in eastern Africa? What is the difference between tourism and migration? Why is it called Buckingham palace? When did the Africa exhibit open at the Cincinnati Zoo? Why tropical plant species should be more specialized in terms of pollinator attraction compared to temperate species? What west African country's north and south boundaries parallel a river? She is Americas famous flag maker? Is erosion at Stockton beach worse than erosion at Newcastle beach? How much did each stone in the pyramid weigh? What are the rivers that flow into Long Island Sound? What would you feel if you were the forest? Where is most of earths water located between the answers glacierslakesoceansand rivers? What are the names of the seven bridges that cross the st johns river in duval county? What is the Tributary of Missouri named after indigenous people? Where is the Comm-Mass Fort Devens Museum in Devens Massachusetts located? What is a meander bend? Which organisation is responsible for the maintenance for taj mahal?