Answer the following question given this paragraph: Alpha particles can travel only a few centimeters through air. They can burn the skin but not penetrate it. Beta particles can travel up to a meter through air. They can penetrate and damage skin. Gamma rays can travel thousands of meters through air. They can penetrate and damage cells deep inside the body. Q: What kind of rays can travel thousands of meters through air and can penetrate and damage cells deep inside the body? Choices: - x-rays - cosmic rays - plasma rays - gamma rays A:
gamma rays
Answer the following question given this paragraph: In a red supergiant, fusion does not stop. Lighter atoms fuse into heavier atoms. Eventually iron atoms form. When there is nothing left to fuse, the star's iron core explodes violently. This is called a supernova explosion. The incredible energy released fuses heavy atoms together. Gold, silver, uranium and the other heavy elements can only form in a supernova explosion. A supernova can shine as brightly as an entire galaxy, but only for a short time, as shown in Figure below . Q: What always continues in a red supergiant? Choices: - heat - movement - fission - fusion A:
fusion
Q: Answer the following question given this paragraph: Scientists also have to "check their work. " The results of an investigation are not likely to be well accepted unless the investigation is repeatedusually many timesand the same result is always obtained. Getting the same result when an experiment is repeated is called replication . If research results can be replicated, it means they are more likely to be correct. Repeated replication of investigations may turn a hypothesis into a theory. On the other hand, if results cannot be replicated they are likely to be incorrect. Q: Getting the same result when an experiment is repeated is called what? Choices: - mutation - initiation - repetition - replication A:
A: replication
Question: Answer the following question given this paragraph: It is hard to overstate the importance of hydrocarbons to modern life. Hydrocarbons have even been called the "driving force of western civilization. " You saw some ways they are used in the opening image. Several other ways are pictured in the Figure below . The most important use of hydrocarbons is for fuel. Gasoline, natural gas, fuel oil, diesel fuel, jet fuel, coal, kerosene, and propane are just some of the commonly used hydrocarbon fuels. Hydrocarbons are also used to make things, including plastics and synthetic fabrics such as polyester. Q: Gasoline, natural gas, fuel oil, diesel fuel, jet fuel, coal, kerosene, and propane are examples of what type of fule? Choices: - electrolysis fuel - polymerization fuel - nuclear fue - hydrocarbon fuel A:
Answer: hydrocarbon fuel
*Question*
Answer the following question given this paragraph: Conditioning is a way of learning that involves a reward or punishment. If you ever trained a dog to obey a command, you probably gave the dog a tasty treat each time he performed the desired behavior. It may not have been very long before the dog would reliably follow the command in order to get the treat. This is an example of conditioning that involves a reward. Q: The way of learning that involves reward and punishment is called? Choices: - foolish - mixed - pressure - conditioning A:
**Answer**
conditioning
Answer the following question given this paragraph: An amide can be formed by combining a carboxylic acid and an amine. Only primary and secondary amines can be used to form amides, since they have a hydrogen that can be replaced with the carbonyl carbon; tertiary amines will not form amides. The amide shown in the Figure above was formed from a carboxylic acid and a primary amine. Q: What can be combined with an amine to form an amide? Choices: - carbon dioxide - ketones - acetic acid - carboxylic acid A:
carboxylic acid