Which civilization is known for recognizing the numeral zero?

A. Olmec

B. Aztec

C. Maya

D. Zapotec

The fact that the earth is an ecosystem means which of the following? A - what happens in one part of the ecosystem will affect other parts B - as long as pollution doesn't reach the ocean, the water supply is fine C-humans can't really understand

What impact did the rough riders have on the war in Cuba

Henry Kissinger was secretary of state under which president? Ford Johnson Kennedy Nixon

How important were horses to the Cheyenne

4 facts about the southeast region in the United States

What causes a negatively charge balloon to become attracted to a wall

People are their most cooperative when interacting via this form of communication: select one: a. face-to-face. b. same time, different place. c. different time, same place. d. different place, different time.

According to french philosopher auguste comte, society passes through what three stages on its quest for knowledge?

Although housing styles may vary by location, this is rarely due to climate or geographic factors. true or false

In what way does biotechnology benefit the pharmaceutical industry? assisting the industry in producing effective medicines raising the cost of some medicines doubling the production of medicines decreasing life expectancy rates increasing infant