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One cause of ageing populations in certain MEDCs is improved access to healthcare. Improved access to healthcare allows individuals to receive treatment more promptly, assisting in stopping preventable illne...

A wave cut platform is formed by the sea attacking the cliff face though different types of erosion e.g. abrasion and hydraulic action. Abrasion is where cliffs are worn down from destructive waves and the t...

Waterfalls often form when hard (e.g. granite) and soft (e.g. clay or chalk) rock are present , where water flows across the harder rock and drops onto softer rock. The falling water then starts to form a pl...

A barrier to entry is any complication or expense a firm might encounter when entering the transport market. There are many barriers to entry such as economies of scale being exploited by pre-existing firms;...

The addition of nutrients such as nitrate means that nutrients no longer limit plant growth.Algae begins to bloom which blocks out sunlight. As a result, plants cannot photosynthesise (or photosynthesis is r...