Question: Q: What two factors influence the pressure of fluids?   Read this paragraph and choose the correct option from the provided answers:  Two factors influence the pressure of fluids. They are the depth of the fluid and its density.   Choices:  - depth and gravity  - time and temperature  - temperature and density  - depth and density   A:
Answer: depth and density

Question: Q: The components of what keep their own identity when they combine and can usually be easily separated?   Read this paragraph and choose the correct option from the provided answers:  The components of a mixture keep their own identity when they combine. Therefore, they usually can be easily separated again. Their different physical properties are used to separate them. For example, oil is less dense than water, so a mixture of oil and water can be separated by letting it stand until the oil floats to the top. Other ways of separating mixtures are shown in Figure below and in the videos below.   Choices:  - alloy  - solution  - compound  - mixture   A:
Answer: mixture

Question: Q: What types of orbits do comets usually have?   Read this paragraph and choose the correct option from the provided answers:  Comets are small, icy objects that orbit the Sun in very elliptical orbits. When they are close to the Sun, they form comas and tails, which glow and make the comet more visible.   Choices:  - vertical  - convex  - spectral  - elliptical   A:
Answer: