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A walker falls through thin ice into very cold water. What does the body do to stop the core body temperature from falling too quickly?

The walker's body will do three things to help slow the decrease in core body temperature. The first is the walker will begin to shiver. Shivering is the spasming of muscles, the muscles as they work g...

JT
Answered by Jack T. Biology tutor
10595 Views

A metal oxide has a relative formula mass (Mr ) of 81. The formula of this metal oxide is MO. Given that the relative atomic mass (Ar ) of oxygen is 16, what is the metal in the metal oxide?

The formula of the metal oxide is MO, which means there is only one oxygen atom bonded to the metal. The Mr of a compound is the sum of Ar of the elements that make up the compound. So, from this we ca...

JT
Answered by Jack T. Chemistry tutor
36988 Views

What is albedo and why is it important in climate change?

Albedo is the reflectivity of a surface. A surface that has a high albedo reflects a lot of solar radiation from the sun back into the atmosphere, whilst a surface that has a low albedo ...

FP
Answered by Faith P. Geography tutor
49873 Views

How do I obtain the most marks in questions which require me to make a comparison? I.e. "Which was the bigger threat to European peace in the 1930s: • the re-militarisation of the Rhineland 1936 • the Nazi-Soviet Pact 1939? [10 Marks]

10-mark questions give you the best opportunity to 1) recall your knowledge of historical cause and continuity in detail, whilst 2) demonstrating your ability ...

JL
Answered by Joshua L. History tutor
4659 Views

Explain Charles Darwin's Theory of Evolution

Populations naturally vary. (Think of how people in your class vary in height, weight and other features)
This variation is brought about by inheritance of g...

LC
Answered by Lewis C. Biology tutor
5424 Views

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