Answer the following question given this paragraph: When a wave meets a barrier, it reflects and travels back the way it came. The reflected wave may interfere with the original wave. If this occurs in precisely the right way, a standing wave can be created. The types of standing waves that can form depend strongly on the speed of the wave and the size of the region in which it is traveling. Q: A standing wave is created when what type of wave interferes with the original wave? Choices: - realized wave - translated wave - refracted wave - reflected wave A:
reflected wave
(Question)
Answer the following question given this paragraph: The transport of sediments by longshore currents is called longshore drift . Longshore drift is created in this way: Sediment is moved up the beach by an incoming wave. The wave approaches at an angle to the shore. Water then moves straight offshore. The sediment moves straight down the beach with it. The sediment is again picked up by a wave that is coming in at an angle. So longshore drift moves sediment along the shore. This zig-zag motion is pictured below ( Figure below ) and can also be seen at the link below. Q: What material is transported in a process called longshore drift? Choices: - boats - foods - grass - sediment A:
(Answer)
sediment
Ques: Answer the following question given this paragraph: 26.3 Color and Color Vision The eye has four types of light receptorsrods and three types of color-sensitive cones. The rods are good for night vision, peripheral vision, and motion changes, while the cones are responsible for central vision and color. We perceive many hues, from light having mixtures of wavelengths. A simplified theory of color vision states that there are three primary colors, which correspond to the three types of cones, and that various combinations of the primary colors produce all the hues. The true color of an object is related to its relative absorption of various wavelengths of light. The color of a light source is related to the wavelengths it produces. Color constancy is the ability of the eye-brain system to discern the true color of an object illuminated by various light sources. The retinex theory of color vision explains color constancy by postulating the existence of three retinexes or image systems, associated with the three types of cones that are compared to obtain sophisticated information. Q: The four types of light receptors include different types of cones and what else? Choices: - quarks - neutrons - joints - rods A:
Ans: rods
(Q).
Answer the following question given this paragraph: character increases. Silicates contain anions that consist of only silicon and oxygen. Aluminosilicates are formed by replacing some of the Si atoms in silicates by Al atoms; aluminosilicates with threedimensional framework structures are called zeolites. Nitrides formed by reacting silicon or germanium with nitrogen are strong, hard, and chemically inert. The hydrides become thermodynamically less stable down the group. Moreover, as atomic size increases, multiple bonds between or to the group 14 elements become weaker. Silicones, which contain an SiO backbone and SiC bonds, are high-molecular-mass polymers whose properties depend on their compositions. Q: Aluminosilicates are formed by replacing some of the si atoms in silicates by which atoms? Choices: - fe - ce - ad - al A:
(A).
al
Ques:Answer the following question given this paragraph: Color is probably the easiest property to observe. Unfortunately, you can rarely identify a mineral only by its color. Sometimes, different minerals are the same color. For example, you might find a mineral that is a golden color and think it is gold. But it might actually be pyrite, or "fool's gold," which is made of iron and sulfide. It contains no gold atoms. Q: Although it is the easiest to observe, what property is not ideal as a sole way to identify minerals? Choices: - temperature - density - composition - color A:

Ans:color
Question: Answer the following question given this paragraph: Q: What happens when water is removed from the endospore? Choices: - reversal - suspension - hibernation - its metabolism halts A:
Answer:
its metabolism halts