Which of the following is not a challenge to instituting sound global environmental policies?
a. most changes are inexpensive and easy to implement.
b. elected leaders who support unpopular environmental issues often are not re-elected.
c. economic considerations outweigh environmental ones in many societies.
d. there is no way to enforce international environmental agreements.

a. Most changes are inexpensive and easy to implement.

Explanation:

Environmental policy refers to the actions that the government takes, as a result of the interaction of economic and social political interests, to conserve the natural foundations of human life and achieve sustainable development. Since the 70s, with growing environmental awareness, it has become an autonomous political sector increasingly important at regional, national or international level. In the governments of many countries there is a ministry in charge of environmental issues and green parties have been created. The definition of an environmental policy at company level is a requirement of environmental management systems certified as ISO 14001 or EMAS.

john f. kennedy purpose was to make his argument a strong appeal to emotion in order to make an impact and connection to american citizens. he want to achieve peace by telling the citizens they shouldn't be afraid of other nations.

explanation:

answer: the risk-return relationship. generally, the higher the potential return of an investment, the higher the risk. there is no guarantee that you will actually get a higher return by accepting more risk. diversification enables you to reduce the risk of your portfolio without sacrificing potential returns.

explanation: