The outer planets are made mostly of gas which makes them

denser than the gaseous inner planets.

less dense than the gaseous inner planets.

denser than the solid inner planets.

less dense than the solid inner planets.

Which communist dictator seized power in Cuba in 1959? A. Vladimir Lenin B. Ché Guevara C. Joseph Stalin D. Fidel Castro

Which of the following is not a concern of groundwater removal?

What are the pros and cons of population growth?

Describe how you plan to construct your geologic column for the grand canyon canyon.

In Oceania and Australasia, what are some reasons native species face extinction? 1. deforestation 2. invasive species 3. conservation 4. desalination May be more then one answer

Scroll over to Iceland and find the Reykjanes Ridge. Do you see how close these volcanoes along this ridge are to Europe? Could they have caused enough smoke and ash to shut down air travel there because of visibility?

1 The human genome project identified the sequence of base pairs in human DNA and identified several g would least likely lead to a scientific investigation based on these findings? Are certain humans more likely to develop genetic diseases?

Mars has no weather. True False

Which of the following bodies of water is not located along Canada's coasts? a. Beaufort Sea b. the Gulf of Mexico c. the Arctic Ocean d. Hudson Bay

What causes the wind? A) The earth's orbit around the sun B) The earth's rotation on its axis. C) The layers of the earth's atmosphere. D) Uneven heating of the earth's surface by the sun.