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Please describe how, and explain why the texture of an igneous intrusion would change from the outer edge to the centre.

When intruding, hot magma contacts the cool country rock this will cause the outer edge will quickly cool and harden, therefore there will not be much time for crystals to form leaving a very fine crystal te...
SA
Answered by Sophia A. • Geology tutor
2201 Views

How do I know when I should be using the Poisson distribution?

To identify a Poisson distribution question, remember that in a Poisson distribution... Events occur independently of each other Events occur at a constant rate Events occur singly (that is, two can't happen...
HD
3462 Views

How can you tell if a reaction will happen?

This will depend on the conservation laws. In the same way that a numerical equation must be equal on either side, a reaction must have the same amount of certain properties on each side. The properties that...
CE
Answered by Chloe E. • Physics tutor
3589 Views

What is the difference between Direct and Indirect Realism?

Direct realism is the common sense view within the philosophy of mind which states that objects are as they appear to be, all objects are made of matter and that our perceptions are entirely correct. Indirec...
HS
Answered by Henry S. • Philosophy tutor
29265 Views

How do you solve a quadratic equation? I always forget how to do that!

x 2 +4x+3=0 The first step is to factorise. To do this you need to find a pair of factors of 3 that add together to make 4. I recommend listing the factors of 3 to start with. Don't forget the negatives! 1 a...
HD
Answered by Hannah D. • Maths tutor
3490 Views