Ques:Answer the following question given this paragraph: The use of nuclear fusion for energy has several pros. Unlike nuclear fission, which involves dangerous radioactive elements, nuclear fusion involves just hydrogen and helium. These elements are harmless. Hydrogen is also very plentiful. There is a huge amount of hydrogen in ocean water. The hydrogen in just a gallon of water could produce as much energy by nuclear fusion as burning 1,140 liters (300 gallons) of gasoline! The hydrogen in the oceans would generate enough energy to supply all the world's people for a very long time. Q: Hydrogen and helium are specifically involved as reactants in what nuclear reaction that is useful for making energy? Choices: - destructive fusion - radioactive fusion - nuclear fission - nuclear fusion A:

Ans:nuclear fusion
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Ques:Answer the following question given this paragraph: The chloroplast is the site of photosynthesis. Part of the photosynthesis reactions occur in an internal membrane within the organelle. The chloroplast contains many of these internal membranes, making photosynthesis very efficient. These internal membranes stack on top of each other, just like a stack of pancakes. Q: What structure, containing many internal membranes, is the site of photosynthesis? Choices: - ribosome - mitochondria - genome - chloroplast A:

Ans:chloroplast
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Ques:Answer the following question given this paragraph: The spinal cord is a long, tube-shaped bundle of neurons, protected by the vertebrae. It runs from the brain stem to the lower back. The main job of the spinal cord is to carry nerve impulses back and forth between the body and brain. The spinal cord is like a two-way highway. Messages about the body, both inside and out, pass through the spinal cord to the brain. Messages from the brain pass in the other direction through the spinal cord to tell the body what to do. Q: What is a long, tube-shaped bundle of neurons, protected by the vertebrae? Choices: - a ganglion - an axon - a dendrite - the spinal cord A:

Ans:the spinal cord
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Ques:Answer the following question given this paragraph: Pneumonia is a disease in which some of the alveoli of the lungs fill with fluid so they can no longer exchange gas. Symptoms of pneumonia typically include coughing, chest pain, difficulty breathing, and fatigue. Pneumonia may be caused by an infection or an injury to the lungs. Q: What the name of the disease where some of the alveoli of the lungs fill with fluid so they can no longer exchange gas? Choices: - leukemia - lung cancer - emphysema - pneumonia A:

Ans:
pneumonia
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