The correct answer is that some of the sand originayed from the sea-cliff rock itself.
Vertified.
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Pioneer species are often hardy plants with Adaptations such as long roots, root nodes containing nitrogen-fixing bacteria, and leaves that employ transpiration.
The equation for the chi squared value is the (observed-expected)^2/E
Explanation:
Because there is a limited amount of compost with a limited amount of minerals. In the garden there is loads of soil and loads of minerals. because of decomposition and absorption minerals can easily be replaced in the garden soil, unlike in a plant pot.
