Occasionally someone claims to have built a machine that can run forever, producing as much energy as it consumes. This has always been disproved because it violates.

Why do all market economies have taxes to support armed forces police forces public schools and at least some form of public transportation?

Which of the following is not part of the constitution

What is the difference between the kurds and the shia muslims? a the kurds are a religious group while the shia muslims are an ethnic group. b the kurds and the shia muslims are religious groups. c the kurds are an ethnic group and the shia muslims are a religious group. d the kurds and the shia muslims are ethnic groups.