Investigating an ecosystem
Abiotic factors are non-living conditions which can influence where plants or animals live.
Examples of abiotic factors include:
Light meters can be used to measure light intensity. The meter is held at the soil surface and pointed in the direction of the maximum light intensity, then the meter is read. Errors can be made when measuring light intensity by accidentally shading the light meter. Results can be made more reliable by taking many samples.
Soil moisture and soil pH meters are also available - both are used by simply pushing the probe into the soil and reading themeter.
Errors can be made when measuring abiotic factors when the soil moisture or pH meter probes are not cleaned between readings. As always the results can be made more reliable by taking many samples.
You should be able to think of one or two more examples of organisms which live in particular place, and explain what factors influence this.
Here are some examples:
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