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Air is Present in Soil Video Lecture | Preparation for NCEE - Primary 6

FAQs on Air is Present in Soil Video Lecture - Preparation for NCEE - Primary 6

1. What is the importance of air in soil?

Ans. Air in soil is essential for the survival of plants and other organisms living in the soil. It helps in the exchange of gases, such as oxygen and carbon dioxide, which are crucial for respiration in plant roots and soil organisms.

2. How does air get into the soil?

Ans. Air enters the soil through tiny spaces between soil particles called pore spaces. These pore spaces are created when the soil is loose and well-drained, allowing air to move freely through the soil.

3. What happens if there is no air in the soil?

Ans. If there is no air in the soil, it becomes compacted and dense. This can lead to poor plant growth as the roots may not receive enough oxygen for respiration. It can also negatively affect soil organisms that require oxygen to survive.

4. Can excess water in the soil affect the presence of air?

Ans. Yes, excess water in the soil can displace air from the pore spaces, leading to poor aeration. When the soil is waterlogged, the oxygen available for plants and soil organisms decreases, which can result in root rot and the death of aerobic organisms.

5. How can we improve air circulation in soil?

Ans. To improve air circulation in soil, it is important to maintain proper soil structure and drainage. Adding organic matter, such as compost or well-rotted manure, can help improve soil structure and create more pore spaces for air movement. Avoiding over-watering and compacting the soil also contribute to better air circulation.

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Sep 05, 2025 Last updated

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