Q: What occurs when the crests of one wave overlap the troughs, or lowest points, of another wave? Read this paragraph and choose the correct option from the provided answers: Destructive interference occurs when the crests of one wave overlap the troughs, or lowest points, of another wave. The Figure below shows what happens. As the waves pass through each other, the crests and troughs cancel each other out to produce a wave with zero amplitude. You can see an animation of destructive interference at this URL: http://phys23p. sl. psu. edu/phys_anim/waves/embederQ1.20200. html. Choices: - harmful interference - random interference - constructive interference - destructive interference A:
destructive interference

(Question)
Q: Sounds or pictures can be encoded in pulses of what, which are then sent through an optical fiber? Read this paragraph and choose the correct option from the provided answers: Besides entertaining a cat, laser light has many other uses. One use is carrying communication signals in optical fibers. Sounds or pictures are encoded in pulses of laser light, which are then sent through an optical fiber. All of the light reflects off the inside of the fiber, so none of it escapes. As a result, the signal remains strong even over long distances. More than one signal can travel through an optical fiber at the same time, as you can see in the Figure below . Optical fibers are used to carry telephone, cable TV, and Internet signals. Choices: - kinetic energy - microwaves - quasars - laser light A:
(Answer)
laser light

Ques: Q: What group of animals has permeable skin that makes them vulnerable to pollution? Read this paragraph and choose the correct option from the provided answers: Amphibians have permeable skin that easily absorbs substances from the environment. This may explain why they seem to be especially sensitive to pollution. Monitoring the health and survival of amphibians may help people detect pollution early, before other organisms are affected. Choices: - fish - mammals - reptiles - amphibians A:
Ans: amphibians

(Q).
Q: What is the term for the quantity of heat required to raise the temperature of 1 gram of a substance by 1 degree celsius? Read this paragraph and choose the correct option from the provided answers: The specific heat capacity (c) of a substance, commonly called its "specific heat," is the quantity of heat required to raise the temperature of 1 gram of a substance by 1 degree Celsius (or 1 kelvin): q c= mT Specific heat capacity depends only on the kind of substance absorbing or releasing heat. It is an intensive propertythe type, but not the amount, of the substance is all that matters. For example, the small cast iron frying pan has a mass of 808 g. The specific heat of iron (the material used to make the pan) is therefore: c iron =. Choices: - thermal heat capacity - transferable heat - heat requirement - specific heat capacity A:
(A).
specific heat capacity

Ques:Q: Energy transfer between what kinds of levels is generally rather inefficient? Read this paragraph and choose the correct option from the provided answers: 55.3 Energy transfer between trophic levels is typically only 10% efficient. Choices: - producer - secondary - apex - trophic A:

Ans:trophic

Question: Q: What is the term for the measure of the average kinetic energy of the particles in matter? Read this paragraph and choose the correct option from the provided answers: Temperature is a measure of the average kinetic energy of the particles in matter. Choices: - voltage - precipitation - friction - temperature A:
Answer:
temperature