Give the correct answer to the following questions:
Divya observed different situations around her in a single day:
- In the morning, her grandmother applied a paste of baking soda on an ant bite, and the pain reduced.
- Later, her brother used an antacid to relieve stomach acidity.
- In the garden, she saw her father adding lime to the soil to improve plant growth.
- In the evening, she read that factory wastes are treated before being released into water bodies.
Based on these observations, answer the following questions:
1. If an ant bite contains an acidic substance, what will happen if another acid is applied instead of a base?
2. Why are mild bases used as antacids instead of strong bases?
3. Why should farmers check the soil before adding lime or organic matter?
4. An industrial worker adds a base to acidic factory waste. What change in pH is expected?