Which of the following statements related to beneficial utilization of wastes is not correct?
- AWaste recycling reduces demand for natural resources
- BSome industrial wastes can be used as construction materials
- CWaste utilization always eliminates environmental impacts completelyCorrect
- DProper processing is often required before waste reuse
Solution
Concept
Beneficial Utilization of Waste
Formula
N/A
Step-by-step solution
1. Read the given options regarding the beneficial utilization of solid wastes. 2. Identify that waste utilization cannot completely eliminate environmental impacts due to processing and energy requirements. 3. Select Option C as the incorrect statement.
Explanation
While reusing or recycling waste helps lower pollution and save resources, it cannot completely remove all environmental impacts. Processing, transporting, and refining waste still require energy and can produce secondary emissions or waste.
Shortcut
To easily spot incorrect statements in "Not Correct" questions, use the Extreme Language Rule: - Watch for Absolute Words: Terms like *always*, *completely*, *never*, or *100%* are almost always false because real-world engineering and environmental processes rarely have absolute outcomes. - Look for Moderate Words: Statements containing words like *often*, *some*, *can*, or *reduces* are generally realistic and correct.
Common mistake
A common mistake is overlooking absolute terms like "always" or "completely" in Option C and assuming that waste utilization is 100% eco-friendly. Students often fail to recognize that processing, transportation, and recycling of waste still require energy and resources, which generate secondary environmental impacts.
Correct answer: C) Waste utilization always eliminates environmental impacts completely