Answer the following question given this paragraph: Vegetable oils are being explored for a variety of uses in which they could replace petroleum products. One such application is in the field of lubricants. Every moving part in machinery (such as engine pistons) needs lubrication to decrease friction and prolong the life of the equipment. Petroleum products serve this purpose now, but are not good for the environment. New techniques for making specialized esters from vegetable oil are being explored that will make the compounds more stable and more useful as lubricants. Q: What type of oil is being explored to replace petroleum products in lubricants? Choices: - essential oil - diesel - whale oil - vegetable A:
vegetable
Answer the following question given this paragraph: Temperature falls from the equator to the poles. Therefore, major temperature zones are based on latitude. They include tropical, temperate, and arctic zones (see Figure below ). However, other factors besides latitude may also influence temperature. For example, land near the ocean may have cooler summers and warmer winters than land farther inland. This is because water gains and loses heat more slowly than does land, and the water temperature influences the temperature on the coast. Temperature also falls from lower to higher altitudes. That's why tropical zone mountain tops may be capped with snow. Q: Water gains and loses what more slowly than does land, affecting seasonal conditions inland and on the coast? Choices: - volume - humidity - minerals - heat A:
heat
Q: Answer the following question given this paragraph: Scientists are searching for ways to create controlled nuclear fusion reactions on Earth. Their goal is develop nuclear fusion power plants, where the energy from fusion of hydrogen nuclei can be converted to electricity. How this might work is shown in Figure below . Q: Scientists goal is develop nuclear fusion power plants, where the energy from fusion of hydrogen nuclei can be converted to what? Choices: - oil - gasoline - wind - electricity A:
A: electricity
Question: Answer the following question given this paragraph: Two unique properties of liquids are surface tension and viscosity. Surface tension is a force that pulls particles at the exposed surface of a liquid toward other liquid particles. Surface tension explains why water forms droplets, like the water droplet that has formed on the leaky faucet pictured in the Figure below . You can learn more about surface tension at this URL: http://io9. com/5668221/an-experiment-with-soap-water-pepper-and-surface-tension . Q: What is the force that pulls particles at the exposed surface of a liquid toward other liquid particles called? Choices: - conservative tension - shinking tension - transfer tension - surface tension A:
Answer: surface tension
*Question*
Answer the following question given this paragraph: Ionic bonding. Ionic bonds result from electrostatic attractions between positively and negatively charged side chains of amino acids. For example, the mutual attraction between an aspartic acid carboxylate ion and a lysine ammonium ion helps to maintain a particular folded area of a protein (part (a) of http://catalog. flatworldknowledge. com/bookhub/reader/2547 - gob-ch18_s04_s01_f05). Saylor URL: http://www. saylor. org/books. Q: Ionic bonds are what kind of attraction between ions? Choices: - kinetic - magnetic - nuclear - electrostatic A:
**Answer**
electrostatic
(Question)
Answer the following question given this paragraph: The level of biodiversity found in the fossil record suggests that the last few million years include the period of greatest biodiversity in the Earth's history. However, not all scientists support this view, since there is a lot of uncertainty as to how strongly the fossil record is biased by the greater availability and preservation of more recent fossil-containing rock layers. Some researchers argue that modern biodiversity is not much different from biodiversity 300 million years ago. Estimates of the present global species diversity vary from 5 million to 30 million species, with a best estimate of somewhere near 10 million species. All living organisms are classified into one of the six kingdoms: Archaebacteria (Archaea), Eubacteria (Bacteria), Protista (Protists), Fungi, Plantae (Plants), and Animalia (Animals). Q: All living organisms are classified into one of six broad categories called what? Choices: - cities - tribes - nobles - kingdoms A:
(Answer)
kingdoms