Which of the following is the main cause of global warming
a. rising sea levels
b. increase in solar radiation
c. release of chlorofluorocarbons into the atmosphere
d. buildup of carbon dioxide in the atmosphere

rising sea levels. (A.)

I think this is the answer.

i do believe its (d) it allowed the government to offer pioneers sixty acres of western land if they lived on it and made improvements to it.

explanation: signed into law in may 1862, the homestead act opened up settlement in the western united states, allowing any american, including freed slaves, to put in a claim for up to 160 free acres of federal land. by the end of the civil war, 15,000 homestead claims had been established, and more followed in the postwar years

answer: capitalism and socialism are formal economies. the major differences between capitalism and socialism revolve around the role of the government and equality of economics. capitalism affords economic freedom, consumer choice, and economic growth.

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explanation: