Answer the following question given this paragraph: Consider petroleum as an example. Oil companies explore for petroleum in areas where they think it might be. When they find it, they must determine how much is there. They must also know how hard it will be to get. If there's enough to make it worthwhile, they will decide to go for it. To extract petroleum, companies they must build huge rigs, like the one in Figure below . An oil rig drills deep into the ground and pumps the oil to the surface. The oil is then transported to a refinery. At the refinery, the oil is heated. It will then separate into different products, such as gasoline and motor oil. Finally, the oil products are transported to gas stations, stores, and industries. At every step, energy is used. For every five barrels of oil we use, it takes at least one barrel to get the oil. Q: What is used during every step of oil production, from exploration to distribution? Choices: - coal - robots - water - energy A:
energy
(Question)
Answer the following question given this paragraph: Climate is the temperature plus precipitation of an area. Not just today, but over a long period of time. Climate affects chemical weathering. Chemical weathering increases as:. Q: What is defined as the temperature plus precipitation of an area over a long period of time? Choices: - conditions - environment - weather - climate A:
(Answer)
climate
Ques: Answer the following question given this paragraph: One trait invertebrates like the sponge and tarantula share is lack of a backbone. In fact, they don't have any bones at all. These are defining traits of all invertebrates. Some invertebrates have a skeleton, but it isn't made of bone. Many other traits of invertebrates show considerable diversity. Q: What traits do the sponge and tarantula share? Choices: - number of eyes - number of legs - lifespan - lack of backbone A:
Ans: lack of backbone
(Q).
Answer the following question given this paragraph: In terms of moisture, climates can be classified as arid (dry), semi-arid, humid (wet), or semi-humid. The amount of moisture depends on both precipitation and evaporation. Q: What is the scientific term for climates with the least moisture? Choices: - mediterannean - tropical - polar - arid A:
(A).
arid
Ques:Answer the following question given this paragraph: A refrigerator must do work to reverse the normal direction of thermal energy flow. Work involves the use of force to move something, and doing work takes energy. In a refrigerator, the energy is usually provided by electricity. You can read in detail in the Figure below how a refrigerator does its work. For an animation of how a refrigerator works, go to this URL: http://www. chemistry. wustl. edu/~edudev/LabTutorials/CourseTutorials/LabTutorials/Thermochem/fridge_movie. html. Q: A refrigerator must do work to reverse the normal direction of what? Choices: - visible energy flow - coolant energy flow - spectral energy flow - thermal energy flow A:

Ans:thermal energy flow
Ques:Answer the following question given this paragraph: Carbohydrates are the most common type of organic compound. A carbohydrate is an organic compound such as sugar or starch, and is used to store energy. Like most organic compounds, carbohydrates are built of small, repeating units that form bonds with each other to make a larger molecule. In the case of carbohydrates, the small repeating units are called monosaccharides. Q: What is the most common type of organic compound? Choices: - lipids - hydrocarbons - proteins - carbohydrates A:

Ans:
carbohydrates