The planet neptune is, on average, about 4.5 billion km from the sun. how long does it take light from the sun to reach neptune? (recall that the speed of light is about 300,000 km/s)

The Appalachian mountains were formed during this Era. A. Precambrian B. Mesozoic C. Paleozic D. Cenozoic

which goal identifies one of the main purposes of a constitution A) to limit government authority B) to raise money for government officials C) to make it more difficult to pass new laws D) to prevent citizens from interfering with the government

Which of the following issues is not a factor in increasing pollution levels in crowded cities? A. home heating and fireplaces B. water conservation C. vehicle emissions D. industrial pollution

Identify the reasons that cities boomed during the Middle Ages. (multiple choice) A. increased trade B. poor sanitation in the countryside C. more employment opportunities D. rise of the feudal system E. growing interest in culture and art F.

What does the phrase " going green" mean

The Democratic Republic of the Congo and the Central African Republic use ___ for their energy needs.

Which of the following belief systems rejects the ideas of worshiping gods and having life after death?

Is our society a throw away

Where do the lines of latitude meet?

How far is geographic second? A. Around 100 feet B. Around 1,000 feet C. 5,000 feet D. None of the above