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How does Ice make drinks Ice cold?

Ice, in it's solid form, is at a maximum temperature of zero degrees Celsius. You might expect that a small volume of Ice might cool say a 25 degree drink to somewhere halfway between 0 and 25. This is not o...
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Answered by ISAAC W. Physics tutor
11413 Views

How does a river profile alter with distance downstream?

A rivers long profile typically varies in accordance with the upper, middle and lower course. The upper course typically has a steeper profile, a v shaped bottom, is narrower with faster flowing water. Water...
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Answered by Theo S. Geography tutor
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How is the structure of the lung adapted for respiratory function?

The lung can be divided into different sections regarding its function. The tube that connects the airway to the lungs is called the trachea, which is made of cartilage rings. These are flexible, and allow s...
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Answered by Rebecca I. Biology tutor
19499 Views

Explain the processes involved in eutrophication

Eutrophication is where a surplus of nutrients in a lake or pond leads to an overgrowth of plant life, causing a shift in the biodiversity. There are 5 steps to this process: Step 1: The use of fertilisers o...
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Answered by Rebecca W. Biology tutor
9216 Views

Discuss the ethical ramifications of P. Foot’s Trolley Problem.

To answer this question there are two areas of focus – structure and content. For a philosophy essay it is important that each point follows a logical progression; one paragraph will lead nicely onto the nex...
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