Which of the following statements about government sanctioned activities to restore ecosystems is true?

a. government sanctioned activities to restore ecosystems are not effective.

b. government sanctioned activities to restore ecosystems completely counteract the negative effects of human activity.

c. government sanctioned activities have been effective in to restore ecosystems, but do not replace prevention efforts.

d. none of the above

The third alternative is correct (C).

The ecosystems of nature suffer from natural aspects, and from artificial aspects.

The artificial aspects are caused by the action of man and consist of pollution, deforestation and emission of gases.

Government-sanctioned activities serve as palliative measures, which contribute to preservation, but do not have a sufficient effect to restore ecosystems. Preservation efforts are key and must be associated with government measures.

in the 1800s, chinese workers migrated to the united states, first to work in the gold mines, but also to take agricultural jobs, and factory work, especially in the garment industry. chinese immigrants were particularly instrumental in building railroads in the american west, and as chinese laborers grew successful in the united states, a number of them became entrepreneurs in their own right. as the numbers of chinese laborers increased, so did the strength of anti-chinese sentiment among other workers in the american economy. this finally resulted in legislation that aimed to limit future immigration of chinese workers to the united states, and threatened to sour diplomatic relations between the united states and china.

the founding fathers did not think women were asmportant as mern were and men could do more and better things then women