Many years ago, people believed that the Earth was the center of the solar system because from Earth, it looks as if the stars and the Sun A) revolve around the Earth.

B) are controlled by the Earth.

C) are much smaller than the Earth.

D) move more quickly than the Earth.​

Match the following terms and definitions a region in arkansas defined by the arkansas river in the western part of the state answer 1 a thoroughly dissected area with steep valley walls and narrow floors answer 2 a geographical region of a country or state answer 3 the friendly and generous reception and entertainment of guests, visitors, or strangers answer 4 the branch of knowledge concerned with the production, consumption, and transfer of wealth answer 5 statistical data relating to the population and particular groups within it answer 6 a mountain range in west central arkansas and southeastern oklahoma answer 7 travel for pleasure or business; also the theory and practice of touring, the business of attracting, accommodating, and entertaining tourists, and the business of operating tours answer 8 answer all parts of the question.

The causes of the failure of the league of nations

In the diagram below, ab and bc are tangent to o. what is the measure of