<h2>Answer:</h2>
<u>The term "</u><u>Production possibility </u><u>Frontier" (or Curve) is a diagram showing the maximum amount of goods and/or services an economy can produce.</u>
<h2>Explanation:</h2>
The production possibility curves is a hypothetical representation of the amount of two different goods. This is a curve depicting all maximum output possibilities for two goods. In other words production possibility curve measures the maximum output of two goods using a fixed amount of input.
Answer:
Andrew Jackson had successfully led the U.S. forces in the Creek War against Native Americans. He served as the seventh President of U.S. from 1829 to 1837. He was also the main founder of the modern Democratic Party.
Explanation:
The answer is McCarthyism.
During this period, the U.S. was determine to prevent the spread of
communism in its territories.
Surveillance and warrantless arrest of suspects were rampant. Many lost their careers after being branded a
communist while others were put in jail.
Many criticized this actions as unconstitutional.
The correct option is D. Volcanic eruption released large amounts of water vapor into Earth's early atmosphere.
Earth’s first atmosphere had lots of water vapor but it almost lacked oxygen. Eventually, frequent volcanic eruptions put several different gases into the air. These gases created a new type of atmosphere for Earth. The volcanic eruptions spewed gases such as nitrogen, carbon dioxide, hydrogen, and water vapor into the atmosphere, but no free oxygen. Without oxygen, there could not be life on Earth.
