Answer the following question given this paragraph: 4. Electricity is made when some type of energy turns a turbine. Explain how this happens and give two examples. Q: What is created when energy turns a turbine? Choices: - light - torque - force - electricity A:
electricity
(Question)
Answer the following question given this paragraph: It is believed that large mutations form new genes. Mutations that duplicate large sections of DNA are a major source of genetic material for new genes. It is thought that tens to hundreds of genes are duplicated in animal genomes every million years. Most genes belong to larger families of genes of shared ancestry. These gene families have domains within the protein with a particular and independent function. These domains have corresponding conserved regions within their genes. It is through duplication mutations that such gene families formed. Genetic recombination after duplication of different domains forms new combinations of domains with new functions. For example, the human eye uses four genes to make structures that sense light: three for color vision and one for night vision; all four arose from a single ancestral gene. Q: What is essential for forming new genes? Choices: - enough mutations - enough chromosomes - chromosome deversity - large mutations A:
(Answer)
large mutations
Ques: Answer the following question given this paragraph: A bowling ball rolls down a lane at a constant velocity. (e) A car accelerates down the road. There is friction between the tires and the road. Q: What does the tires meeting the road cause when a car accelerates? Choices: - erosion - vibration - thrust - friction A:
Ans: friction
(Q).
Answer the following question given this paragraph: The female reproductive system consists of structures that produce eggs and secrete female sex hormones. They also provide a site for fertilization and enable the development and birth of a fetus. Q: What system consists of structures that produce eggs, secrete female sex hormones, and ultimately enable birth of a fetus? Choices: - male reproductive system - female uterus system - female hormone system - female reproductive system A:
(A).
female reproductive system
Ques:Answer the following question given this paragraph: Coal is a solid hydrocarbon. Coal is useful as a fuel, especially for generating electricity. Coal is relatively inexpensive and abundant. Developing nations, like China, rely heavily on coal. Around the world, coal is the largest source of energy for electricity. Q: What type of hydrocarbon is coal? Choices: - mineral - gas - liqued - solid A:

Ans:solid
Answer the following question given this paragraph: Names of ionic compounds are derived from the names of the ions, with the name of the cation coming first, followed by the name of the anion. If an element can form cations of different charges, there are two alternate systems for indicating the compound's name. In the Stock system, a roman numeral in parentheses indicates the charge on the cation. An example is the name for FeCl2, which is iron(II) chloride. In the common system, the suffixes -ous and -ic are used to stand for the lower and higher possible charge of the cation, respectively. These suffixes are attached to a stem representing the element (which frequently comes from the Latin form of the element name). An example is the common name for FeCl2, which is ferrous chloride. The formula mass of an ionic compound is the sum of the masses of each individual atom in the formula. Care must be taken when calculating formula masses for formulas containing multiple polyatomic ions because the subscript outside the parentheses refers to all the atoms in the polyatomic ion. Q: The name of the cation comes first, followed by the name of the anion, in what kind of compound? Choices: - magnetic compound - localized compound - covalent bonds - ionic compound A:
ionic compound