Sunlight5

=__Sunlight__ =

= What is the factor: Sunlight is the rays from the sun . **Sunlight helps plants make their own food through a process called photosynthesis. Also if there is little sunlight in a stream or river they tend to have fewer organisms than streams or rivers with more sunlight. **   =

= = ** How does the factor affect wildlife: The amount of sunlight that a stream or river receives affects an ecosystem's biodiversity. This is the number and variety of organisms found within one specified area. A lack of sunlight can affect organisms within an ecosystem. **

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How have human activities impacted this factor: Some human activities have impacted sunlight. For example humans growing trees around streams or rivers limit the sunlight in that particular area. The leaves of the tree block the sunlight and it can`t get to the stream or river. This limits the biodiversity of the stream or river. Also another example would be large docks or bridges over rivers or streams also limiting the sunlight. **

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