Ontario Grade 9 Science Class Practice Exam

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What are abiotic factors?

  1. Disease-causing agents in an ecosystem

  2. Living components of an environment

  3. Nonliving components of environment

  4. Animals that feed on plants

The correct answer is: Nonliving components of environment

Abiotic factors refer to nonliving components of an environment. These factors include physical aspects such as water, soil, temperature, and sunlight. Option A is incorrect because disease-causing agents are biotic factors, or living components of an environment. Option B is incorrect because living components refer to biotic factors such as plants, animals, and bacteria. Option D is incorrect because it refers to a specific type of animal and does not encompass all nonliving components of an environment.

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