How does the formation of stones take place in kidney?

Explanation

**Step-by-Step Solution:**

1. **Understanding Kidney Stones**: Kidney stones, also known as renal calculi, are hard deposits made of minerals and salts that form inside the kidneys.

2. **Role of Oxalate**: The formation of kidney stones often involves a substance called oxalate. Oxalate is a by-product found in certain foods, such as spinach, nuts, and chocolate.

3. **Binding with Calcium**: When oxalate is present in the body, it can bind with calcium. This binding is a crucial step in the formation of stones.

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