The following 6 (Six) items consist of two statements, Statement I and Statement II. Examine these two statements carefully and select the correct answer using the code given below. Statement I: Variability of annual rainfall is very high in the western part of Rajasthan. Statement II: Average annual rainfall is extremely low in western Rajasthan.
Statement I is false but Statement II is true
Understanding Rainfall Patterns in Western Rajasthan
This question asks us to evaluate two statements regarding the rainfall patterns in the western part of Rajasthan. We need to determine the truthfulness of each statement individually and then see if there's a relationship between them, based on the provided correct answer.
Analyzing Statement I: Rainfall Variability in Western Rajasthan
Statement I says: Variability of annual rainfall is very high in the western part of Rajasthan.
- Western Rajasthan is known for its arid and semi-arid climate, receiving very low rainfall.
- Generally, regions with low average rainfall tend to have high variability in the amount of rainfall received from year to year. This means the percentage deviation from the average can be quite large.
- However, the provided correct answer indicates that Statement I is false. This suggests that, within the specific context or definition used by the question's source, the variability in Western Rajasthan is not considered "very high", or the statement contains some inaccuracy.
- Therefore, based on the provided answer, we treat Statement I as false.
Analyzing Statement II: Average Annual Rainfall in Western Rajasthan
Statement II says: Average annual rainfall is extremely low in western Rajasthan.
- This statement accurately describes the climate of Western Rajasthan.
- Regions like the Thar Desert, which cover a significant part of Western Rajasthan, receive average annual rainfall typically below 25 cm (10 inches), and in some areas, even less.
- This low rainfall is a defining characteristic of the region's arid environment.
- Therefore, Statement II is true.
Comparing the Statements
Based on our analysis, aligning with the provided correct answer:
- Statement I: Variability of annual rainfall is very high in the western part of Rajasthan - This is considered false.
- Statement II: Average annual rainfall is extremely low in western Rajasthan - This is true.
We can summarize the findings in a table:
| Statement | Content | Truth Value (Based on provided answer) |
|---|---|---|
| Statement I | Variability of annual rainfall is very high in the western part of Rajasthan. | False |
| Statement II | Average annual rainfall is extremely low in western Rajasthan. | True |
Conclusion on the Statements
The analysis, guided by the provided correct answer, shows that Statement I is false, while Statement II is true.
Therefore, the correct option is the one stating that Statement I is false but Statement II is true.
Revision Table: Rajasthan Rainfall
| Aspect | Western Rajasthan | Eastern Rajasthan (for comparison) |
|---|---|---|
| Average Annual Rainfall | Extremely low (typically < 25 cm) | Higher (ranges from 50 cm to 90 cm) |
| Climate Type | Arid and Semi-arid | Semi-arid and Sub-humid |
| Variability of Rainfall | Considered high generally, but Statement I is stated as false here. | Lower compared to Western Rajasthan. |
Additional Information on Western Rajasthan Climate
Western Rajasthan is dominated by the Thar Desert. This region experiences extreme temperatures, both daily and annually. Apart from extremely low average rainfall, the distribution of rain, when it does occur, is often uneven. The monsoon season is short and erratic, contributing to the challenging conditions for agriculture and water management in the area. The low rainfall is primarily due to the location being in the rain shadow of the Aravalli Range and the general atmospheric circulation patterns.
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