Answer the following question given this paragraph: Nuclear changes occur with a simultaneous release of energy. Where does this energy come from? If we could precisely measure the masses of the reactants and the products of a nuclear reaction, we would notice that the amount of mass drops slightly in the conversion from reactants to products. Consider the following nuclear reaction, in which the molar mass of each species is indicated to four decimal places:. Q: Nuclear changes occur with a simultaneous release of what, and a slight drop in mass? Choices: - oil - mineral - hydrogen - energy A:
energy
(Question)
Answer the following question given this paragraph: In a similar fashion, viral therapy uses viruses to genetically modify diseased cells and tissues. Viral therapy shows promise as a method of gene therapy and in the treatment of cancer. Gene therapy is the insertion of genes into a person's cells and tissues to treat a disease. In the case of a genetic disease, the defective gene is replaced with a working gene. Although the technology is still new, it has been used with some success. Q: Which therapy uses viruses to genetically modify diseased cells and tissues? Choices: - chemotherapy - digestive therapy - oxygen therapy - viral therapy A:
(Answer)
viral therapy
Ques: Answer the following question given this paragraph: Secondary pollutants are formed when primary pollutants interact with sunlight, air, or each other. They do not directly cause pollution. However, when they interact with other parts of the air, they do cause pollution. For example, ozone is created when some pollutants interact with sunlight. High levels of ozone in the atmosphere can cause problems for humans. Q: What are formed when primary pollutants interact with sunlight, air, or each other? Choices: - cross pollutants - typical pollutants - secondary contaminants - secondary pollutants A:
Ans: secondary pollutants
(Q).
Answer the following question given this paragraph: Our solar system began about 5 billion years ago. The Sun, planets, and other solar system objects all formed at about the same time. The leading hypothesis for how they formed is called the nebular hypothesis . Q: Approximately how many billion years ago did our solar system begin? Choices: - four billion - three billion - nine billion - five billion A:
(A).
five billion
Ques:Answer the following question given this paragraph: Does everyone who smokes develop lung cancer? No, of course not. Is it possible to get lung cancer without smoking? Sadly, yes it is. That's not to say there is no relationship between the two: smoking is still the leading cause of lung cancer. But it does suggest that a person's genetic background has a role in this process. Apart form true single gene disorders, environmental factors, or environmental triggers , may determine the development of disease in individuals genetically predisposed to a particular condition. Environmental triggers may include stress, physical and mental abuse, diet, exposure to toxins, pathogens, and radiation. Many cancers are thought to have an environmental component. It has been suggested that environmental factors play a role in autism as well. Asthma is obviously triggered under certain environmental conditions. Q: Many cancers, as well as autism, are thought to have what component, which is certainly a factor in asthma? Choices: - emotional - critical - ecological - environmental A:

Ans:environmental
Answer the following question given this paragraph: Q: What three things do animals require in order to survive? Choices: - Sex, Love, Food - Shelter, Food and love - Immunity, blood, water - air, water, food A:
air, water, food