4. How does coral reef affect money-making industries around the world?

A) There are fewer scientists.
B) There are fewer tourists.

A

Explanation:

I believe that coral reefs attract tourists, so it's the only reasonable answer in my opinion

69 is the correct math for the amino acids

answer: 20 percent

the fish culture has become a developing commercial practice in developing countries which is already prominent in developed countries of the world. the major fish protein demand is being supplemented in developing countries is   fishing to meet the needs of the growing population. therefore, in some developing nations, the percentage of animal protein from fish in the diet can be as high as 20 percent.