Answer the following question given this paragraph: Carbohydrates, proteins, and lipids provide energy and have other important roles in the body. Q: Along with other functions, what do carbohydrates, proteins, and lipids provide for the body? Choices: - muscle - hydrogen - carbon - energy A:
energy
(Question)
Answer the following question given this paragraph: Forests are also being destroyed. Trees may be cut down for their wood, or they may be burned to clear the land for farming. Burning wood releases more carbon dioxide into the atmosphere. You can see how a tropical rainforest was cleared for farming in Figure below . With forests shrinking, there are fewer trees to remove carbon dioxide from the air. This makes the greenhouse effect even worse. Q: What does burning wood release into the atmosphere? Choices: - oxygen - helium - hydrogen chloride - carbon dioxide A:
(Answer)
carbon dioxide
Ques: Answer the following question given this paragraph: Sources of voltage include electric generators and cells. Electric generators change kinetic energy to electrical energy. Chemical cells change chemical energy to electrical energy, and solar cells change solar energy to electrical energy. Q: Electric generators change kinetic energy to what type of energy? Choices: - thermal - light - intrinsic - electrical A:
Ans: electrical
(Q).
Answer the following question given this paragraph: Soil is a precious resource. It allows us to grow food and the materials we use to make everything from the shirt you have on to the medicine you took this morning. Soil is made up of small pieces of rock that have broken down over hundreds, if not thousands, of years. Soil is also partly made up of the remains of plants and animals, and is home to many organisms, from earthworms to ants. But soil can be damaged by unsustainable farming practices and clear-cut logging. In this chapter, you will learn how soil forms, what it contains, and how to protect it. Q: What precious resource allows us to grow food as well as materials we turn into clothing and medicine? Choices: - petroleum - mercury - gasoline - soil A:
(A).
soil
Ques:Answer the following question given this paragraph: Charge Carried by Electrons and Protons Franklin wrote in his letters and books that he could see the effects of electric charge but did not understand what caused the phenomenon. Today we have the advantage of knowing that normal matter is made of atoms, and that atoms contain positive and negative charges, usually in equal amounts. Figure 18.5 shows a simple model of an atom with negative electrons orbiting its positive nucleus. The nucleus is positive due to the presence of positively charged protons. Nearly all charge in nature is due to electrons and protons, which are two of the. Q: What part of an atom is positive due to the presence of positively charged protons? Choices: - Neutron - Proton - Electron - nucleus A:

Ans:nucleus
Answer the following question given this paragraph: Dutch elm trees used to be common, beautiful trees in the United States. Now most of them, like this tree, have been killed by Dutch elm disease. Dutch elm disease is caused by a fungus. This is just one example of how fungi can interact with other species. Q: Dutch elm trees used to be common, beautiful trees in the united states. now most of them have been killed by what? Choices: - carbon dioxide - beetles - cancer - dutch elm disease A:
dutch elm disease