leilaneedshelp6625 leilaneedshelp6625

28-04-2018
Biology

contestada

An open-air waste water treatment plant is flooded by rain. the rainwater and the waste run into a nearby creek. the organic wastes are very high in biological oxidation demand (bod) which means the bacteria in the waste need a lot of oxygen. what is the best hypothesis to explain why many fish might die as a result of this event?

Respuesta :

Diatonic254 Diatonic254

08-05-2018

The answer is eutrophication. This is caused by the high oxygen demand by the bacteria breaking down the waste in the water. This reduces the oxygen levels in the lake and therefore makes the waters anoxic. The lake becomes unable to support other organisms, such as fishes, in the lake that require oxygen for respiration.

Answer Link

Otras preguntas

2) Analyze the impact of the war between Russia-Ukraine on the exchange rates?

tabulate 5 difference between local and western instrument in tabular form

3 (27, [infinity]), use only the definition of increasing or decreasing function to determine if the 5 = is increasing or decreasing. 3 7√7x - 3 For x E functi

Select the correct answer. What is the standard form of this complex number? 1 3 − − 4 A. 3 − 2 ⁢ i B. 3 + 2 ⁢ i C. 3 5 + − 2 5 D.

A company is assessing the impact that three accounting changes will have on its financial statements. For each of the three changes, determine the type of chan

how do you think the village people feel about the lottery? explain.

what two accounts are affected when a business sells services on account

The cubs of spotted hyenas often begin fighting within moments of birth, and often one hyena cub dies. The mother hyena does not interfere. How could such a beh

find centered at =22 for all for the function ()=. (use symbolic notation and fractions where needed.) ()=∑=0

Let E be the elliptic curve y2 = x3 + x + 28 defined over Z71. Determine all the points that lie on E

ACCESS MORE