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At a constructive margin two plates separate or diverge. There are two types of constructive margins. Firstly, where plates move apart in oceanic areas they produce mid-oceanic ridges. Secondly, where the...

Competitive inhibitors, compete for the active site. They have a similar shape to the substrate and so can bind to the active site and prevent the substrate from binding. This means the subtrate cannot bi...

Greenhouse gases include methane and carbon dioxide. These gases enhance the greenhouse effect which consequently warm up our planet. 

The sun's energy arrives as short wave radiation, this type of...

(Draw the two out) 

Chlorine has 7 electrons in its outer shell while sodium has only one.

In a food chain, very little energy is passed onto the next trophic level - this is because living creatures create waste.  Energy passes out of the food chain in a number of ways, including; - energy use...