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Q: What is a thick, dark brown or black liquid found in rock layers of the earth's crust? Read this paragraph and choose the correct option from the provided answers: Oil is a thick, dark brown or black liquid. It is found in rock layers of Earth's crust. Oil is currently the most commonly used source of energy in the world. Choices: - propane - fossil fuel - coal - oil A:
(Answer)
oil

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Q: The amount of force applied per given area is called? Read this paragraph and choose the correct option from the provided answers: Bernoulli's law states that the pressure of a moving fluid such as air is less when the fluid is moving faster. Pressure is the amount of force applied per given area. The law is named for Daniel Bernoulli, a Swiss mathematician who discovered it during the 1700s. Bernoulli used mathematics to arrive at his law. For an animation of the law, go to the URL below. Choices: - energy - strength - power - pressure A:
(Answer)
pressure

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Q: What is a change in the sequence of bases in dna or rna called? Read this paragraph and choose the correct option from the provided answers: A change in the sequence of bases in DNA or RNA is called a mutation . Does the word mutation make you think of science fiction and bug-eyed monsters? Think again. Everyone has mutations. In fact, most people have dozens or even hundreds of mutations in their DNA. Mutations are essential for evolution to occur. They are the ultimate source of all new genetic material - new alleles - in a species. Although most mutations have no effect on the organisms in which they occur, some mutations are beneficial. Even harmful mutations rarely cause drastic changes in organisms. Choices: - radiation - infection - evolution - mutation A:
(Answer)
mutation