Which of the following is not an advantage of GM crops?

Options

A. Increased crop tolerance to salt in soil
B. Increased reliance on chemical pesticides
C. Reduction in post harvest losses
D. Increased efficiency of mineral usage

Answer

To determine which of the following is not an advantage of GM crops, we need to evaluate the advantages typically associated with genetically modified (GM) crops. Here’s a step-by-step breakdown:

### Step 1: Identify the advantages of GM crops
1. **Tolerate abiotic stress**: GM crops can be engineered to withstand conditions such as drought, high temperatures, and salinity.
2. **Disease resistance**: GM crops can be modified to resist diseases caused by pathogens, bacteria, and nematodes.
3. **Reduction in reliance on agrochemicals**: GM crops can potentially reduce the need for herbicides and insecticides, which are harmful to the environment.
4. **Reduction in post-harvest losses**: GM crops can have traits that help them stay fresh longer, reducing spoilage after harvest.
5. **Increased efficiency of mineral use**: GM crops can be designed to utilize soil nutrients more efficiently.

### Step 2: Analyze the options provided
- **Option A**: Increase crop tolerance to salt in soil - This is an advantage of GM crops.
- **Option B**: Increased reliance on chemicals - This is NOT an advantage of GM crops, as the goal is to reduce reliance on chemicals.
- **Option C**: Reduction in post-harvest loss - This is an advantage of GM crops.
- **Option D**: Increased efficiency of mineral use - This is also an advantage of GM crops.

### Step 3: Conclusion
Based on the analysis, the option that is not an advantage of GM crops is **Increased reliance on chemicals**.

### Final Answer:
**Increased reliance on chemicals** is not an advantage of GM crops.

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