Question

Which statement represents an abiotic environmental factor in an ecosystem? The plant has flower buds every spring. The fish swim up the river to reproduce. The fox eats mice in the meadow. The lake bottom is lined with rocks.

Answer 1

The last sentence is correct.

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Answer 2

Answer:  The lake bottom is lined with rocks.

Explanation:

Abiotic factor environmental factor is the non-living factor of the ecosystem on which the living  beings are either influenced by or are dependent upon for their basis needs such as air is required for respiration, water is required to fullfil thirst and sunlight is important for photosynthesis.

The lake bottom is lined with rocks. is the correct option because rocks define the abiotic factor.