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BlackZzzverrR [31]
2 years ago
5

Which of the following is a harmful effect of oil spills? (A)Migration of large schools of fish (B)Changes in sea level (C)Plant

photosynthesis decreases (D)Increased ocean pH
Physics
2 answers:
Anarel [89]2 years ago
6 0

Answer: C) Plant photosynthesis decreases

Explanation: An oil spill may impact on various ways, it can be harmful to plants and animals, change the ph of the water (which also affects the wildlife in the water), dangerous emissions, and one thing you need t to have in mind is that these effects may last from 2 to 5 or more years.

Then the two options that made sense are options C and D.

The change in the Ph made by the oil spills is the opposite of the showed in option D, the Ph decreases, which made the water more acidic, so we can discard the option D.

And we end up with option C, plant photosynthesis decrease, this is because the thicker oil blocks the sunlight to the plants underwater, and then there is less sunlight received by them, which affects their photosynthesis.

kotegsom [21]2 years ago
4 0
C is your answer to the question
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D= Seven

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3 years ago
Make a rough estimate of the number of quanta emitted in one second by a 100 W light bulb. Assume that the typical wavelength em
mixas84 [53]

Answer:

#_photon = 5 10²⁰ photons / s

Explanation:

For this exercise let's calculate the energy of a single quantum of energy, use Planck's law

         E = h f

         c= λ f

         E = h c / λ

          λ= 1000 nm (1 m / 109 nm) = 1000 10⁻⁹ m

Let's calculate

          E₀ = 6.6310⁻³⁴ 3 10⁸/1000 10⁻⁹

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This is the energy emitted by a photon let's use a proportions rule to find the number emitted in P = 100 w

                #_photon = P / E₀

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6 0
3 years ago
Nuclear energy is over ___ times stronger than the chemical bonds between the atoms
Kamila [148]

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1 millions times stronger

8 0
2 years ago
A snail travels 300 cm in 4 minutes.calculate speed of snail in m/s
LekaFEV [45]

Answer:

\frac{0.0125m}{s}

Explanation:

In order to solve this question we need to know that  speed = \frac{distance}{time}. Then we need to convert 4 minutes into seconds and cm into m. We can do that by multiplying the number of minutes by 60 (because there is 60 seconds in one minute) and dividing the number of cm by 100 (because there is 100 cm in one m). So.......

4min = 4 x 60s = 240s

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Now we know that distance = 300m, and that the time = 4min = 240s ⇒

⇒ speed=\frac{distance}{time} = \frac{3m}{240s} = \frac{0.0125m}{s}

5 0
2 years ago
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