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fgiga [73]
3 years ago
7

If you were trying to build a soundproof room, which of the following materials would you choose in order to absorb the most sou

nd, based on the coefficient of absorption for each material? A. Carpet B. Wood C. Heavy Curtains D. Concrete
Biology
1 answer:
gulaghasi [49]3 years ago
7 0

Coefficients of Absorption for Common Materials

Perforated acoustic ceiling material 60%

Heavy curtains 50%

Carpeting 20%

Wood 5%

Plaster 3%

Clay tile 3%

Concrete 2%

The answer is C. Heavy curtains

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Is the temperature profile in the thermosphere more like that of the troposphere or the stratosphere?
podryga [215]

The correct answer is: stratosphere.

This is because their temperatures are rising instead of decreasing.

There are 4 primary layers of the atmosphere on Earth:  

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Stratosphere  (20-50 km), where the airplanes fly, contains the ozone layer, which absorbs harmful radiation from the sun.

Mesosphere (50-85 km), the coldest region of Earth’s atmosphere (-100 C), protective layer

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When the chemical name of a compound is being written the subscripts will determine the
erma4kov [3.2K]

Answer:

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2 years ago
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What is the ultimate source of heat in the process of global warming
nalin [4]
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3 0
3 years ago
Q3.13. In our simulation of herbivores feeding in a farm pasture, we treated each species as if it were foraging all by itself.
lilavasa [31]

Answer:

<em>The grasshopper competes with the sheep for food, thereby reducing the available quantity and quality of food for the sheep.</em>

Explanation:

In an ecosystem, many organisms rely on the same food source. The success of a particular species in extracting the food source better than another species that needs that same food source can affect the success of  population of this other species of animal. If the number of grasshopper in this pasture becomes too much, it might lead to the consumption of a large portion of the pasture by the grasshopper, leading to a reduction in the available food for the sheep. If this happens, the population of the sheep might decline in order to balance the increase in the population of the grasshopper.

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