Ques: Answer the following question given this paragraph: Friction is the force that resists motion. In most beginning physics classes, friction is ignored. Concepts can be understood and calculations made assuming friction to be nonexistent. Whenever physics intersects with the real world, however, friction must be taken into account. Friction exists between two touching surfaces because even the smoothest looking surface is quite rough on a microscopic scale. Q: What type of force exists between two touching surfaces? Choices: - opposing - centrifugal - tension - friction A:
Ans: friction

Ques: Answer the following question given this paragraph: Today, reptiles live in a wide range of habitats. They can be found on every continent except Antarctica. Many turtles live in the ocean, while others live in freshwater or on land. Lizards are all terrestrial, but their habitats may range from deserts to rainforests, and from underground burrows to the tops of trees. Most snakes are terrestrial and live in a wide range of habitats, but some snakes are aquatic. Crocodilians live in and around swamps or bodies of freshwater or salt water. Q: Which continent is the only one that reptiles don't inhabit? Choices: - Africa - South America - Europe - antartica A:
Ans: antartica

Ques: Answer the following question given this paragraph: Figure above also shows how the size of waves is measured. The highest point of a wave is the crest. The lowest point is the trough. The vertical distance between a crest and a trough is the height of the wave. Wave height is also called amplitude. The horizontal distance between two crests is the wavelength. Both amplitude and wavelength are measures of wave size. Q: The highest point of a wave is called? Choices: - surge - threshold - frequency - crest A:
Ans: crest

Ques: Answer the following question given this paragraph: Q: Respectively, which parts of the circulatory system carry blood from the heart toward capillaries, and return blood to the heart from capillaries? Choices: - parasites and veins - arteries and capillaries - organs and veins - arteries and veins A:
Ans:
arteries and veins