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What are some hypotheses to explain the Permo-Triassic mass extinction? (when 95% of marine invertebrates and 77% of land species became extinct)

A mass extinction is a large decrease in the number of species over a relatively short period of time (several millions of years). The most likely cause of this species decline i...

Answered by Sarah Jane O. • Geology tutor

1325 Views

What is rationalising a fraction?

So firstly, when we do a rationalisation problem, we are trying to get rid of any surds in the denominator(the bottom part of a fraction). Surds are numbers that have been square rooted and do not equal a...

Answered by Aditi R. • Maths tutor

2732 Views

Outline and explain two ways in which the ethnocentric curriculum may operate in education.

The term 'ethnocentric' describes an attitude or policy that gives priority to the culture and viewpoint of one particular ethnic group, while disregarding others. The culture that domina...

Answered by Sarita P. • Sociology tutor

36618 Views

How can I prepare for a medical school interview?

(1) Take care of the basics Make sure you have the date, time & location correct; you’ve organised transport, and know what you’re going to wear (organise in advance, esp. if borrowin...

Answered by Caoimhe Q. • Medical School Preparation tutor

1049 Views

A right-angle triangle has sides AB, BC and CA with the right -angle between sides BC and CA. The angle between AB and BC is 24 degrees. The length of AB is 12m. How long is side BC?

Firstly we draw the triangle. From here we can see that the hypotenuse is side AB and the angle we know is between this side and the side we are trying to find the length of. This is when we can use eithe...

Answered by Katherine D. • Maths tutor

2790 Views