Direction: Read the following passage and answer the questions by choosing the right option. The Journey of a River Rivers begin their journey high in the mountains, where melting snow or rainwater gathers to form small streams. These streams flow downhill, joining with others to become larger rivers. As the river travels, it shapes the land around it, carving valleys and creating habitats for many plants and animals. Along the way, rivers provide water for people, animals and crops. Towns and cities often develop near rivers because they offer a reliable water source and an easy way to transport goods. However, rivers can also flood, especially after heavy rains, which can damage homes and farms. Many rivers eventually flow into oceans or seas, completing their long journey. To protect rivers, people must avoid polluting them with waste and chemicals. Keeping rivers clean helps ensure they continue to support life and benefit future generations.
Understanding River Protection
This question asks us to identify how people can help protect rivers, based on the information provided in the passage titled 'The Journey of a River'. The passage explains the origins of rivers, their role in shaping landscapes, and their importance for life and human activities.
Identifying Key Actions for River Protection
The passage gives clear advice on how to protect rivers. It specifically states:
- "To protect rivers, people must avoid polluting them with waste and chemicals.
- Keeping rivers clean helps ensure they continue to support life and benefit future generations.
This highlights that preventing contamination is the primary way humans can ensure rivers remain healthy.
Analyzing the Provided Options
Let's look at each option to see how it relates to the passage's guidance on river protection:
| Option | Statement | Relevance to Passage |
| 1. Avoid using river water | This suggests refraining from utilizing water from rivers. | The passage mentions rivers provide essential water for people, animals, and crops. Avoiding their use is not suggested as a protection method, and it contradicts their role as a water source. |
| 2. Stop planting trees | This proposes halting tree planting activities. | Planting trees is often beneficial for ecosystems, including riverbanks, by preventing erosion. The passage does not link stopping tree planting to river protection. |
| 3. Build more dams | This suggests increasing the number of dams on rivers. | While dams affect river flow, the passage does not present building dams as a method for protecting rivers from pollution or harm. The focus is on direct actions against detrimental activities. |
| 4. Avoid polluting them | This recommends preventing the discharge of harmful substances into rivers. | This option directly matches the explicit instruction given in the passage: "people must avoid polluting them with waste and chemicals." This is presented as the crucial step for river protection. |
Conclusion on Protecting Rivers
Based on the passage's text, the most effective way for people to contribute to river protection is by actively preventing pollution. This means ensuring that waste materials and harmful chemicals do not enter the river systems, thus preserving their ecological health and usability for the future.
Important Questions from Ecology and Environment
Which one of the following cities is associated with Biosaftey protocol to the Convention on Biological Diversity (2000) ?
The following six (6) items consist of two statements, Statement I and Statement II. Examine these two statements carefully and select the answer using the code given below.
Statement I: Phytoplankton produce most of the organic carbon in the ocean.
Statement II: Algae are produced in the cold water biome.
Which one of the following is the correct sequence about various levels of organization of Biosphere?
In India, Project Tiger started in ________.
The process of wastewater treatment is commonly called ______ treatment.
