Question

Name various abiotic factors in an ecosystem. Explain their significance.

Answer 1

Abiotic factors are the non-living physical and chemical components of an ecosystem. They include sunlight, temperature, water, air, soil, moisture, humidity, rainfall, soil texture and nutrients such as carbon, nitrogen and phosphorus.

Significance:

1. Sunlight provides energy for photosynthesis.
2. Water is essential for the survival and metabolic activities of organisms.
3. Temperature affects the growth, reproduction and distribution of organisms.
4. Soil provides minerals, nutrients and support to plants.
5. Air supplies oxygen for respiration and carbon dioxide for photosynthesis.