Answer the following question given this paragraph: Oceans of salt water cover much of Earth's surface. Freshwater is water that contains little or no salt. Most of Earth's freshwater is frozen in ice caps and glaciers. Q: In what form is most of the earth's freshwater? Choices: - gas - liqued - steam - frozen A:
frozen

Answer the following question given this paragraph: fibers, films, plastics, semisolid resins, and rubbers are also polymers. More than half the compounds produced by the chemical industry are synthetic polymers. Some common addition polymers are listed in http://catalog. flatworldknowledge. com/bookhub/reader/2547 - gob-ch13_s05_t01. Note that all the monomers have carbon-to-carbon double bonds. Many polymers are mundane (e. , plastic bags, food wrap, toys, and tableware), but there are also polymers that conduct electricity, have amazing adhesive properties, or are stronger than steel but much lighter in weight. Table 13.2 Some Addition Polymers. Q: More than half the compounds produced by the chemical industry are what? Choices: - replacement polymers - artificial polymers - gas polymers - synthetic polymers A:
synthetic polymers

Answer the following question given this paragraph: Metamorphic rocks form as an existing rock is altered by high temperature or pressure. Q: What kind of rocks form as an existing rock is altered by high temperature or pressure? Choices: - igneous - sedimentary - basaltic - metamorphic A:
metamorphic

Answer the following question given this paragraph: Solar Dependence and Food Production Some organisms can carry out photosynthesis, whereas others cannot. An autotroph is an organism that can produce its own food. The Greek roots of the word autotroph mean "self" (auto) "feeder" (troph). Plants are the best-known autotrophs, but others exist, including certain types of bacteria and algae (Figure 5.2). Oceanic algae contribute enormous quantities of food and oxygen to global food chains. Plants are also photoautotrophs, a type of autotroph that uses sunlight and carbon from carbon dioxide to synthesize chemical energy in the form of carbohydrates. All organisms carrying out photosynthesis require sunlight. Q: What living things are considered photoautotrophs because they use sunlight and carbon from carbon dioxide to synthesize chemical energy in the form of carbohydrates? Choices: - protazoa - bacteria - moulds - plants A:
plants