Desert biomes are characterised by

Options

A. Low temperature and low precipitation
B. Low temperature and high precipitation
C. High temperature and low precipitation
D. High temperature and high precipitation

Answer

**Step-by-Step Solution:**

1. **Understanding Desert Biomes**: Begin by recognizing that desert biomes are unique ecosystems defined by specific climatic conditions.

2. **Precipitation Levels**: One of the key characteristics of desert biomes is their low precipitation. Deserts typically receive less than 50 centimeters of rainfall per year, which is a defining feature of these regions.

3. **Temperature Conditions**: Deserts are also characterized by high temperatures. During the day, temperatures can soar significantly, while at night, they can drop sharply, leading to a wide temperature variation between day and night.

4. **Evaporation Rates**: Due to the high temperatures, deserts experience high evaporation rates. This means that any moisture that does fall is quickly evaporated, contributing to the arid conditions.

5. **Soil Characteristics**: The soil in desert biomes is often coarse-textured, which affects water retention and plant growth.

6. **Evaluating Options**: Now, let's evaluate the options provided in the question:
- Low temperature and low precipitation: Incorrect
- Low temperature and high precipitation: Incorrect
- High temperature and low precipitation: Correct
- High temperature and high precipitation: Incorrect

7. **Conclusion**: The correct characterization of desert biomes is that they are defined by high temperatures and low precipitation.

**Final Answer**: Desert biomes are characterized by high temperature and low precipitation.

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