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Photosynthesis is the process by which plants make energy.  Plants use carbon dioxide from the atmosphere, water from the soil and light which acts as a "catalyst" to make usable energy in the f...

Fractional distillation separates the different molecules in a crude oil mixture because of their differences in boiling points. 

A fractional distillation column is heated at the bottom and gets p...

Weathering is the breakdown and decay of rocks in-situ (where they originally lie) whereas erosion is the active removal (transportation) of weathered fragments. 

First of all we need to find a common denominator. This is the smallest number that can be divided by both 5 and 8, which is 40.

24/40 + 35/40

Method: 5 goes into forty 8 times and so we mus...

One difference between Systematic Desensitisation (SD) and Flooding as treatments of phobic anxiety is the time period used. SD is a behavioural therapy based on the principles of classical conditioning, ...