Neutral to acidic in reaction
Grey to yellow in colour
Lowland soil are more fertile than upland
High magnesium concentration
Answer is Right!
Answer is Wrong!
The correct answer is D. High magnesium concentration.
Terai soil is a type of soil found in the Terai region of Nepal and India. It is a young soil that is formed from the alluvial deposits of the Ganges River. Terai soil is typically neutral to acidic in reaction, grey to yellow in colour, and has a high organic matter content. Lowland soil in Terai is more fertile than upland soil due to the higher concentration of organic matter.
Magnesium is an essential element for plant growth. However, high levels of magnesium can be toxic to plants. In Terai soil, the concentration of magnesium is not high enough to be toxic to plants. Therefore, the statement “High magnesium concentration” is false.
Here is a brief explanation of each option:
- Option A: Neutral to acidic in reaction. Terai soil is typically neutral to acidic in reaction. This means that the pH of the soil is between 6 and 7.
- Option B: Grey to yellow in colour. Terai soil is typically grey to yellow in colour. This is due to the high concentration of organic matter in the soil.
- Option C: Lowland soil are more fertile than upland soil. Lowland soil in Terai is more fertile than upland soil due to the higher concentration of organic matter.
- Option D: High magnesium concentration. The concentration of magnesium in Terai soil is not high enough to be toxic to plants. Therefore, the statement “High magnesium concentration” is false.