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Ksenya-84 [330]
3 years ago
8

you see lightning before you hear thunder because A) light waves can travel through a vacuum. B) sound waves cannot travel throu

gh the air. C) light waves travel faster than sound waves. D) sound waves travel faster than light waves.
Biology
2 answers:
lakkis [162]3 years ago
8 0

Answer: Option C

Explanation:

When the weather is not good and lighting takes place with rain. At this time thunderstorm can also seen in the sky.

In this case the light is first seen then sound is produced. This is so because the light travels faster than the sound waves.

The speed of light is much more faster than that of the sound waves so light is seen first then sound is hear.

motikmotik3 years ago
7 0
C) light waves travel faster than sound waves.
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Does social distancing increase or decrease your carbon footprint?
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Answer:

Decrease

Explanation:

The carbon footprint is <u>the amount of carbon (in terms of greenhouse gases) being emitted by human activities</u>. In a situation where <u>social distancing is encouraged, human activity would reduce significantly</u>. Very few people will be outside and the causative agents of pollution (anthropogenic) will be significantly reduced. Further, nature would be able to minimize the impacts of pollution when human activities are less than the threshold capacity.

Let's take an example of coronavirus spread globally this year. The social distancing of 2 meters has significantly reduced the number of people going outside. Ultimately, there are fewer automobiles on the roads and a few industries are running. The result is that the air quality index has been significantly improved. For example, in India, people from 300 km away, can see the Himalayan mountain range very clearly (see image attached). This has not happened in decades after modern industrialization.

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2 years ago
What are types of scientific explanation​
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theories, models, and laws

Explanation:

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3 years ago
On early Earth, what was referred to as the "primordial soup"? a. The mixture of gasses in the early Earth's atmosphere. b. The
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Considering that most soups are warm and salty The answer is B. The combination of organic compounds in warm salty water.
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3 years ago
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Scientists observed that the populations of top-level consumers in a particular ecosystem were rapidly decreasing. Further studi
yanalaym [24]

Answer:

The correct answer is - decreased population size at all levels.

Explanation:

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It is because they are the only organisms that convert the sunlight to usable energy and food that transfer from one trophic level to other, so if the population of producers or their productivity will decrease then there will be decreased population size at all levels.

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2 years ago
Effects of pollution might includea. inability to see the top of skyscrapers because of the smog.b. acid rain-induced destructio
poizon [28]

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e. all of these answers

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It is in the natural environment where the first signs of the harmful effects of air pollution were seen, plants and vegetation act as an indicator in this regard.

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SO2 ; O3 ; Fluorides ;  HCL; Cl2; NO2

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Contaminants can affect materials by particle deposition or abrasion and also by chemical reactions between the contaminant and the material. For example : stone, iron and paintings

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Therefore, air pollution caused by SOx and NOx affects water, soil and ecosystems.

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Pesticides and other toxic chemicals that are used in the domestic environment, farms and industrial production, and that are dumped into the water, cause fish death.

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3 years ago
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