1.
Deserts generally have soil with humus in

2.
Lichens are a mutualism formed between fungi and various groups of

3.
Depending on the soil properties, more or less nutrients or water become available to the

4.
Temperature changes on earth are caused due to

5.
Rhododendrons, heathers, pineapple, cotton and tea plants grow well in

6.
Abiotic is also called

7.
Soil, moisture, sunlight are some examples that are known as

8.
A relationship that benefits both organisms is known as

9.
An example of abiotic in nature is

10.
Compared to the temperature, more oxygen is present in

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