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Soil infiltration is the downwards vertical movement of water from the surface in to the soil. It is measured in mm/hour. The rate of movement depends on the soil porosity, the amount of water already pre...

Electronegativity.
Molecules with atoms which possess an almost full outer shell will always be seeking to draw in the extra electron(s) to fill up their outer shells.Likewise molecules with atoms wh...

The best way to revise is by doing practice questions, you can’t just read about the theory, you need to do as much practice as possible. This is why practicing past papers is the number one tip for revis...

Augustus had many close colleagues such as Maecenas who had links with influential figures such as poets. Maecenas then made arrangements with these people, such as Ovid and Horace and offered them money ...