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leonid [27]
4 years ago
7

Which are the most common producers in aquatic ecosystems?

Physics
1 answer:
Aleksandr-060686 [28]4 years ago
5 0

Answer:

b -algae

Explanation:

The most common producers in aquatic ecosystems are the algae. They are called phytoplanktons.

  • In the food web and food chain of aquatic ecosystems, they usually set out with the algae.
  • These algae are called phytoplanktons.
  • They are the producers in all aquatic ecosystem.
  • Phytoplanktons consists of algae and cyanobacteria.
  • Just like plants on land, phytoplanktons manufacture food in an aquatic ecosystem.
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What is the sound intensity level in decibels? Use the usual reference level of I0 = 1.0×10−12 W/m2.
jek_recluse [69]

Answer:

L = 130 decibels

Explanation:

The computation of the sound intensity level in decibels is shown below:

According to the question, data provided is as follows

I = sound intensity = 10 W/m^2

I0 = reference level = 1 \times 10-12 W/m^2

Now

Intensity level ( or Loudness)is

L = log10 \frac{I}{10}

L = log10 \frac{10}{1\times 10^{-12}}

L = log10 \times 1013

= 13 \times 1 ( log10(10) = 1)

Therefore  

L = 13 bel

And as we know that

1 bel = 10 decibels

So,

The  Sound intensity level is

L = 130 decibels

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