Q: Diagnosing and treating cancer is a beneficial use of what potentially dangerous energy? Read this paragraph and choose the correct option from the provided answers: Radiation has several important uses, including diagnosing and treating cancer. Choices: - thermal - mechanical - solar - radiation A:
radiation

Q: Which factor causes a cannon ball to move horizontally and then fall on the ground? Read this paragraph and choose the correct option from the provided answers: Earth's gravity also affects the acceleration of objects that start out moving horizontally, or parallel to the ground. Look at Figure below . A cannon shoots a cannon ball straight ahead, giving the ball horizontal motion. At the same time, gravity pulls the ball down toward the ground. Both forces acting together cause the ball to move in a curved path. This is called projectile motion . Choices: - cone motion - fluid motion - downward motion - projectile motion A:
projectile motion

Q: Q: With a shape that specially suits its function of sending nerve signals to other cells, the human nerve cell is an example of what? Read this paragraph and choose the correct option from the provided answers: The human nerve cell in Figure below is a good example of a specialized animal cell. Its shape suits it for its function of sending nerve signals to other cells. A nerve cell couldn't take this shape if it were surrounded by a rigid cell wall. Choices: - adaptation - maturation - evolution - specialization A:
A: specialization

Question: Q: What trimester is associated with rapid fetal growth? Read this paragraph and choose the correct option from the provided answers: Figure 43.21 There is rapid fetal growth during the third trimester. (credit: modification of work by Gray's Anatomy). Choices: - first trimester - fourth trimester - second trimester - third trimester A:
Answer: third trimester

*Question*
Q: What is the least dangerous radioactive decay? Read this paragraph and choose the correct option from the provided answers: All radioactive decay is dangerous to living things, but alpha decay is the least dangerous. Choices: - beta decay - gamma decay - zeta decay - alpha decay A:
**Answer**
alpha decay

*Question*
Q: What type of work called occurs when a system pushes back the surroundings against a restraining pressure? Read this paragraph and choose the correct option from the provided answers: A type of work called expansion work (or pressure-volume work) occurs when a system pushes back the surroundings against a restraining pressure, or when the surroundings compress the system. An example of this occurs during the operation of an internal combustion engine. The reaction of gasoline and oxygen is exothermic. Some of this energy is given off as heat, and some does work pushing the piston in the cylinder. The substances involved in the reaction are the system, and the engine and the rest of the universe are the surroundings. The system loses energy by both heating and doing work on the surroundings, and its internal energy decreases. (The engine is able to keep the car moving because this process is repeated many times per second while the engine is running. ) We will consider how to determine the amount of work involved in a chemical or physical change in the chapter on thermodynamics. Choices: - shape work - contrast work - retention work - expansion work A:
**Answer**
expansion work