Select the correct answer from each drop-down menu. Complete the sentences about Earth's early biosphere. After Earth formed, the emerging biosphere had several effects on Earth's lithosphere. For example, rocks and minerals showed evidence of caused by the presence of oxygen in air. In a second example, actually created new rock after being dissolved in water or buried underground.

In the spring of 1989, thousands of protesters gathered in tiananmen square in beijing, china. they rallied around a plaster statue that resembled the statue of liberty which they called “the goddess of democracy.” these protestors were seeking a) united states assistance in gaining better health care. b) economic reforms which would allow more chinese exports. c) the boycott of the future olympic games scheduled for beijing. d) political reforms to allow more freedom of speech and political representation.

Advances in technology generally result a.) a higher standard of living for everyone b.) greater productivity c.) more jobs for everyone d.) more government regulation

The signing of which document ended the american revolutionary war? a. u.s. constitution b. declaration of independence c. treaty of paris d. treaty of versailles