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What is a hotspot?

A hotspot is a small area within the mantle which is of a higher temperature than the area surrounding it, and is usually associated with volcanic activity.

Formation:

Answered by Sarah P. • Geography tutor

14792 Views

How does a neuron maintain its resting potential and why is it important?

The membrane of an axon contains a large number of protein channels along its length, which all fall under three categories: the sodium/potassium pumps, the voltage-gated sodium channels & the volt...

Answered by Ferdinand B. • Biology tutor

27223 Views

When do you use the subjunctive?

You can remember when to use the subjunctive using the acroynm WEIRDO:

Wishes, hopes and desires e.g. quiero que, espero que, deseo que

Em...

Answered by Munroop P. • Spanish tutor

3076 Views

Proton NMR Made Easier

Proton or ¹H NMR can look complicated but with practice; there are techniques that can make the peak assignment a little easier.1. Make sure you count the proton environments correctly, if the ...

Answered by Martin L. • Chemistry tutor

4386 Views

What is a stationary point on a curve? How do I calculate the co-ordinates of a stationary point?

A stationary point simply means a point in a curve where the gradient is equal to 0.For example, in the June 2015 C3 Paper it is asked:Find the exact values of the coordinates of the stationary points of ...

Answered by Martin L. • Maths tutor

6025 Views