Answers created by Charlie P.

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• What are some of the theories on the origin of earth's water?
  
• How would you compare and contrast global warming and the green house effect?
  
• Where does our energy go after we die?
  
• How do predator and prey populations limit each other's growth rates?
  
• What is in the center of our galaxy?
  
• Should the dissection of animals in U.S. public schools be stopped? Why or why not?
  
• What are the five senses? Why are they important?
  
• Does the sun circle around the earth?
  
• Which is better- nuclear energy, solar power, or coal?
  
• Does the distance from the Sun cause Earth's seasons?
  
• What are pumice rocks?
  
• What was the situation the Allies were in when the Americans arrived in Europe during WW1?
  
• What are some examples of common soil decomposers?
  
• What is the closest planet outside of our solar system?
  
• In what year did Russia leave World War l?
  
• What system helps an organism make new organisms?
  
• How can the universe expand?
  
• What is Halley's Comet?
  
• Are endangered species caused by human actions or a natural cycle?
  
• In general, how does the characteristic mineral composition of a light colored igneous rock differ from that of a dark colored igneous rock?
  
• Why villi are important?
  
• What are the 3 countries west of the iron curtain?
  
• How do we know that the Earth's surface is moving?
  
• Why is carbon dioxide important to remove from the bloodstream?
  
• What are some of the main mid-ocean ridges on earth?
  
• Will we ever exploit other planets for precious metals or other non-renewable resource?
  
• What are the benefits of sexual reproduction compared to asexual reproduction?
  
• How did the lunar maria form?
  
• Which year was first world war happened and how it take end ?
  
• How can people stay safe during earthquakes?
  
• How do lizards attract a mate?
  
• How can reduced precipitation lead to limited water availability?
  
• What is the distance between Uranus and Saturn?
  
• What happens if a person were to go into a black hole?
  
• Exactly how big is space?
  
• In an ecosystem, what happens to the atom of certain chemical elements such as carbon oxygen, and nitrogen?
  
• What are five invasive species in Arkansas?
  
• According to modern cosmology, what is the approximate age of the universe?
  
• What are the main sources of dissolved oxygen in water?
  
• How are other galaxies discovered?
  
• What is the definition of a black hole?
  
• During which season will the sun travel the shortest path across the sky?
  
• Whose assassination instigated war between Serbia and Austria-Hungary?
  
• Identify four land forms associated with tectonic activities?
  
• Please help! Why did the United States oppose Ho Chi Minh’s leadership of North Vietnam?
  
• What is the boundary where 2 plates are moving together?
  
• How would one best explain a virus's means of replication?
  
• Name any one aerial adaptation in animals?
  
• Place where seafloor is forced under continental plates?
  
• Suppose a seamount forms from an underwater volcano. Birds on the mainland colonized the island. How might this lead to speciation?
  
• Which came first, the chicken or the egg? (Please give an actual scientific answer)
  
• How have plants and animals adapted in the savanna ecosystem?
  
• Do we say mode of nutrition in herbivores to be herbivorous or herbivore?
  
• How far away is the nearest blue supergiant star?
  
• Do all animals develop from embryos?
  
• Where does fertilization occur?
  
• Where did the original plants first evolve?
  
• What are the four types of natural selection? Please give examples.
  
• Which fossil type provides the most anatomical to paleontologists?
  
• Why do plants need a variety of pigments to carry out photosynthesis?
  
• Question #9b48e
  
• How does natural selection result in the Viceroy butterfly bearing a close but superficial resemblance to the Monarch butterfly?
  
• What is the movement of energy from a geothermal source of energy to produce energy which can be used?
  
• How were the earth and moon made from a geological standpoint?
  
• Do all galaxies spiral in the same direction? Do all planets revolve in the same direction?
  
• What is forestry?
  
• What characteristics are shared by most or all crustaceans?
  
• What happens at a nerve synapse?
  
• Question #a29c9
  
• What did the first algae produce? What was its significance?
  
• Global warming is causing the ice caps to melt. What is the most likely effect on northern wildlife?
  
• Question #0d362
  
• Question #76775
  
• Question #e1052
  
• Question #f53a8
  
• What is the medical terminology for blind spot of eye?
  
• What is the specialised reproductive cells found in the the body of men? Of women?
  
• Why should we identify environmental problems?
  
• What are some examples of human activity which might affect biodiversity?
  
• What force pushes upward on the continental crust?
  
• What is an animal or plant taxon (e.g. family, genus, or species) that has a good fossil record of evolutionary development?
  
• What mechanism could explain the diversity of life?
  
• Oak and maple trees, chipmunks, white-tailed deer, and black bears emerging from hibernation are all organisms that may be found in which biome?
  
• How is respiration in plants different from that in animals?
  
• Is there a good mnemonic device to remember all the geologic ages, including eras?
  
• Question #660b2
  
• Question #b3cd6
  
• Question #a1a91
  
• What is an earthquake?
  
• What is the purpose of geothermal energy?
  
• Question #93356
  
• How is geothermal energy obtained?
  
• How are tectonic plates moved by convection currents?
  
• Question #8703c
  
• The overall population of a species decreased. What could have occurred to make this happen?
  
• What would happen if we did not have a metabolism?
  
• Which type of ecological pyramid best traces the flow of matter through an ecosystem?
  
• If an organism has very thick fur, how would this help it to live in the tundra?
  
• Why is a food web a more realistic way of portraying an ecosystem than a food chain?
  
• What are the three main impacts of climate change on human beings?
  
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