Answer the following question given this paragraph: Food calories are determined by burning the food and measuring the heat released. Q: What property of food is determined by burning the food and measuring the heat released? Choices: - acidity - nutrients - additives - calories A:
calories
Answer the following question given this paragraph: Many common electric devices contain electromagnets. Some examples include hair dryers, fans, CD players, telephones, and doorbells. Most electric devices that have moving parts contain electric motors. You can read below how doorbells and electric motors use electromagnets. Q: What type of motor is used in most household devices with moving parts? Choices: - cooling motors - vacuum motors - thermal motors - electric motors A:
electric motors
Q: Answer the following question given this paragraph: Green cyanobacteria on a lake make food by photosynthesis. Q: Green cyanobacteria on a lake produce food through what process? Choices: - spermatogenesis - glycolysis - reverse transferase - photosynthesis A:
A: photosynthesis
Question: Answer the following question given this paragraph: All chemical reactions, even exothermic reactions, need activation energy to get started. Activation energy is needed to bring reactants together so they can react. Q: What do all chemical reactions need to get started? Choices: - expression energy - kinetic energy - potential energy - activation energy A:
Answer: activation energy
*Question*
Answer the following question given this paragraph: Q: In artificial passive immunization, which items from an immune animal are injected into a nonimmune animal? Choices: - parasites - platelets - allergies - antibodies A:
**Answer**
antibodies
(Q).
Answer the following question given this paragraph: Steel is an example of an alloy. An alloy is a mixture of a metal with one or more other elements. The other elements may be metals, nonmetals, or both. An alloy is a solid solution. It is formed by melting a metal and dissolving the other elements in it. The molten solution is then allowed to cool and harden. Several other examples of alloys and their uses are shown in Figure below . You can learn about an amazing alloy called memory wire at the URL below. If you have braces on your teeth, you may even have this alloy in your mouth!. Q: A mixture of a metal with one or more other elements is called? Choices: - a carbon - a hydrogen - a cobalt - an alloy A:
(A).
an alloy