Nitrogen is used in various applications across different industries. Here are a few examples:

1. **Agriculture:** Nitrogen is a key component of fertilizers because it's an essential nutrient for plants.

2. **Food Industry:** Nitrogen gas is used to create a controlled atmosphere that helps preserve food and beverages. It's also used in food packaging to displace oxygen and prevent oxidation, which can lead to spoilage.

3. **Chemical Industry:** Nitrogen is used in the production of various chemicals, including ammonia, nitric acid, and cyanides.

4. **Healthcare and Pharmaceuticals:** Nitrogen is used in cryosurgery and cryotherapy to remove unwanted tissues. It's also used in the production of some medications.

5. **Electronics:** Nitrogen is used in the production of semiconductors and electronic parts as it helps provide a clean and oxygen-free environment.

6. **Metallurgy:** Nitrogen is used in heat-treatment processes of metals, where it's used to prevent oxidation.

7. **Aerospace & Automotive:** Nitrogen is used in aircraft and vehicle tires due to its stability at high temperatures and pressures.

Please note that these are just a few examples, and there are many more uses for nitrogen in various industries.
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