If we divide the world crudely into rich nations and poor nations, two thirds of them are desperately poor, and only one third comparatively rich, with the united states the wealthiest of all. metaphorically each rich nation can be seen as a lifeboat full of comparatively rich people. in the ocean outside each lifeboat swim the poor of the world, who would like to get in, or at least to share some of the wealth. what should the lifeboat passengers do? first, we must recognize the limited capacity of any lifeboat. for example, a nation's land has a limited capacity to support a population and as the current energy crisis has shown us, in some ways we have already exceeded the carrying capacity of our land. what part of the passage best states hardin's central argument?

Read the paragraph. theodore roosevelt was the greatest president because as a leader of the progressive party, he brought about much-needed social, political, and economic reform. one of his economic reforms was to break up many large business trusts. by doing so, he took economic power out of the hands of the wealthy and powerful corporations and placed it in the hands of the ordinary people. theodore roosevelt’s reform policies, known as the square deal, to give the average citizen an equal share of opportunities. which sentence is the thesis of this paragraph? theodore roosevelt was the greatest president because as a leader of the progressive party, he brought about much-needed social, political, and economic reforms. one of his economic reforms was to break up many large business trusts. by doing so, he took economic power out of the hands of the people and placed it in the hands of the ordinary people. theodore roosevelt’s reform policies, known as the square deal, to give the average citizen an equal share of opportunities.