The Vaal River is one of the major rivers in South Africa but the runo...
The given statement talks about the need to build large dams to store water due to the inconsistent runoff of the Vaal River in South Africa. The correct answer is option C: "so as to". Let's break down the explanation:
1. The Vaal River: The statement mentions that the Vaal River is one of the major rivers in South Africa. This provides the context for the need to manage its water resources effectively.
2. Inconsistent runoff: The statement states that the runoff of the Vaal River is not constant. This means that the amount of water flowing in the river varies over time.
3. Large dams: Due to the inconsistent runoff, it becomes necessary to build large dams. These dams serve the purpose of storing water during periods of high flow and releasing it during periods of low flow.
4. To store water for use: The purpose of building these large dams is to store water for use. This water can be utilized for various purposes such as irrigation, drinking water supply, hydroelectric power generation, and industrial use.
5. "So as to": Option C, "so as to", is the correct choice because it implies the intention or purpose behind building the dams. It indicates that the dams are constructed in order to store water for future use, given the variability of the Vaal River's runoff.
In conclusion, due to the inconsistent runoff of the Vaal River in South Africa, large dams have to be built so as to store water for use. These dams help in managing the water resources effectively and ensure a reliable supply of water in the region.
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The Vaal River is one of the major rivers in South Africa but the runo...
Understanding the Correct Answer: "So as to"
The context of the sentence provides insight into why option 'c', "so as to," is the correct choice.
Importance of Water Storage
- The Vaal River experiences variable runoff.
- This variability necessitates the construction of large dams.
Purpose of Dams
- Dams are built primarily to manage water supply.
- They help store excess water during periods of high runoff for later use.
Why "So as to"?
- The phrase "so as to" indicates purpose or intention.
- It clearly connects the need for dams to the goal of storing water.
Other Options Explained
- Not withstanding: This phrase means "in spite of" and does not fit the intention of the sentence.
- Regardless of: Similar to "not withstanding," it implies that something happens despite other factors, which is not the focus here.
- Thanks to: This suggests a cause-and-effect relationship, which doesn't appropriately express the intention of building dams.
- With the aim of: This is close in meaning but does not have the same clarity and directness as "so as to."
Conclusion
- "So as to" effectively conveys the purpose behind building large dams on the Vaal River, making it the most suitable choice in this context.
In summary, the phrase "so as to" succinctly defines the action of building dams with the clear intent to store water for future use.