Legislation has been ineffective at preserving coral reefs.

It is true that legislation has been ineffective at preserving and protecting the coral reefs. Such failure by the legislation can be seen by the continued decrease and decline of the quantity of the coral reefs which will gradually caused the decrease in the reproduction of fish.

The changes to agriculture in the united states since 1900 is that increased mechanization has increased food production, thereby increasing the need for labor. there has been an increased need for higher speeds of food production due the fact that the population in the united states continues to rise.