Answer:
Constructive wave is a wave that leads to the build-up of a beach, owing to the swash of the wave being more effective in moving material than the backwash. Usually, constructive waves are associated with low-energy conditions and a gentle offshore gradient.
I don't think you'll get any answer for this for only 5 points, just what she said
In 1914, the Philippines were under the control of the United States of America.
Mobutu Sese Seko improved Zaire's mining and industries but corruption prevented repayment of international
loans. In his final years
of rule, Zaire was largely reduced to a BARTER economy. Barter is an informal
trade or exchange of goods and services.