Management and conservation of natural resources means the scientific utilization of resources. This method yields the greatest sustainable benefit of available resources to the present generations, while maintaining its potential to meet the needs and aspirations of future generations. In recent years, it has been observed that most of our natural resources are being depleted. It is mainly due to the over exploitation of resources as a result of changing lifestyle, over population and technological development. Thus the need of the hour is to wisely manage our natural resources and minimize their wastage. For this, we should remember the 3 R's that can save environment.
If we are using discarded items of paper, plastic and sending them to the respective industries for making useful objects. Then which R to save the environment we are following?

Options

A. Reuse
B. Remove
C. Recycle
D. Reduce

Explanation

To solve the question regarding the management and conservation of natural resources, we need to identify which of the "3 R's" (Reduce, Reuse, Recycle) is being followed when we use discarded items of paper and plastic and send them to respective industries for making useful objects.

### Step-by-Step Solution:

1. **Understanding the 3 R's**: The three R's are Reduce, Reuse, and Recycle. Each of these concepts plays a significant role in conserving natural resources and minimizing waste.

2. **Defining Each R**:
- **Reduce**: This means to minimize the amount of waste we produce. It focuses on cutting down on the consumption of resources.
- **Reuse**: This involves using an item more than once, either for the same purpose or for a different purpose, without significant alteration.
- **Recycle**: This is the process of converting waste materials into new materials and objects. It involves collecting and processing materials that would otherwise be thrown away as trash.

3. **Analyzing the Given Action**: The question states that discarded items of paper and plastic are being sent to industries to make useful objects. This indicates that the materials are being processed and transformed into new products.

4. **Identifying the Correct R**: Since the action involves processing waste materials (paper and plastic) to create new items, it aligns with the concept of recycling.

5. **Conclusion**: Therefore, the R that we are following in this scenario is **Recycle**.

### Final Answer:
The R we are following to save the environment by using discarded items of paper and plastic and sending them to industries for making useful objects is **Recycle**.