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densk [106]
3 years ago
8

Why is water pollution a concern if water is continuously cycled through Earth’s systems?

Biology
2 answers:
umka2103 [35]3 years ago
8 0

Water pollution is still a concern, even though its cycled through the Earth's system continuously, for many reasons. Firstly, people still continue to dump toxic chemicals, and plastic/ garbage into the water. Plastic doesn't decompose, it continues to sit and pollute the ocean unless it is cleaned up. Then there are also the chemicals. Some of these chemicals don't dissipate, or clear out for many years. There is also oil that has been spilt into the ocean. Even though it was many years ago, it still lingers in the ocean, and is very difficult to clean up. Secondly, there are bacteria and algae that lives in the water, which makes it very harmful for us if not cleaned out. The Earth's system is unable to keep these organisms out of the water. Thirdly, there is constantly water, even though water goes through the cycle, there is still unfiltered polluted water that stays, and then pollutes the filtered water. 

felt like this needed a better answer, so here you are. I got 100% on edgenuity 2020 with this.

zvonat [6]3 years ago
7 0
First of all, it makes algae grow, because pesticides and stuff provide too many nutrients. Algae needs a lot of oxygen and so the fish begin to die off because the algae is taking all the oxygen out of the lake. Next, it causes biodiversity to drop, meaning that species are beginning to get less varied. Water pollution harms the lakes and is a concern because the effects of it on species and the water will stay.
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Answer:

This question is incomplete; the remaining part is as follows:

What mass of simple sugar glucose is produced by the reaction of 6.48g of water?

The answer is 4.780g of glucose

Explanation:

Photosynthesis, as described in the question, is a chemical reaction in which water and carbon dioxide chemically react to form the simple sugar glucose and oxygen gas. The chemical reaction is as follows:

6CO2 + 6H2O ---> C6H12O6 + 6O2

6 moles of H2O will produce 1 mole of glucose

Using mole=mass/molar mass

Molar mass of CO2 = 44g/mol, C6H12O6 = 180g/mol

Mass of water used = 6mol × 44g/mol

= 244g

Mass of glucose produced = 1mol × 180g/mol = 180g

That is;

244g of H2O will produce 180g of glucose

Hence, 6.48g of H20 will produce:

= 6.48 × 180/244

= 4.780g of glucose

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