Question

In a solid waste handling facility, the moisture contents (MC) of food waste, paper waste, and glass waste were found to be MCf, MCp, and MCg, respectively. Similarly, the energy contents (EC) of plastic waste, food waste, and glass waste were found to be ECpp, ECf, and ECg, respectively. Which of the following statement(s) is/are correct?

• A. MCf \(>\) MCp \(>\) MCg
• B. ECpp \(>\) ECf \(>\) ECg
• C. MCf \(<\) MCp \(<\) MCg
• D. ECpp \(<\) ECf \(<\) ECg

Hint:

In waste management, organic materials like food waste tend to have higher moisture content, whereas plastic and glass materials have higher energy content due to their calorific value.

Answer 1

The Correct Option is A, B

In solid waste handling, the moisture content of various materials is usually highest for food waste (due to its organic nature), followed by plastic and glass waste, which have much lower moisture content. Therefore, the order of moisture content is: \[ MCf \(>\) MCp \(>\) MCg \] For energy content, plastic waste tends to have the highest energy content due to its high calorific value, followed by food waste, and then glass waste, which has very low energy content. Thus, the energy content follows the pattern: \[ ECpp \(>\) ECf \(>\) ECg \] Thus, the correct answer is (A).