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Explain how eutrophication can result in low oxygen levels in the water in the stream.

Eutrophication occurs when excess nitrates from fertilisers seep into the stream. The nitrates cause algal bloom on the surface of the water. As a result, sunlight is blocked from reaching the plants unde...

NB
Answered by Nadia B. Biology tutor
4267 Views

How many roots does the equation x^2 = x + 12 have and what are they?

x2 -x -12 = 0. Here we have rearranged the equation so that we have 0 on one side of the equation, allowing us to now factorise. (x - ...

JE
Answered by Juzer E. Maths tutor
3997 Views

List 3 similarities and differences between the structure of a plant cell and an animal cell

Similarities:They both have a cell membraneThey both have a nucleusThey both have cytoplasmDifferences:A plant cell has a cell wall but an animal cell doesn'tA plant cell has a vacuole but an animal cell ...

SR
5648 Views

Solve y = 2x^2 - 5x - 1 for x = -1 and x = 2

y = 2 (-1)2 -5(-1) -1y = 2 + 10 - 1y = 11y = 2 (2)2 -5(2) -1y = 8 - 10 -1y = -3

AB
Answered by Anna B. Maths tutor
4754 Views

What is "Point-Evidence-Explanation (PEE)"?

"Point-Evidence-Explanation" is the basic structure that all good essay answers should follow. First you have the POINT, the argument that you want to make about a particular book, character, pa...

VS
9565 Views

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