It is expected that time is not far off when coastal land will be flooded . Why ?

Explanation

**Step-by-Step Solution:**

1. **Understanding the Context**: The question asks why coastal lands are expected to be flooded in the near future. This involves understanding environmental changes, particularly related to climate.

2. **Identifying the Cause**: The primary cause of the expected flooding is the increase in greenhouse gases in the atmosphere. These gases trap heat, leading to an increase in the Earth's temperature, a phenomenon known as global warming.

3. **Effects of Global Warming**: As the Earth's temperature rises, it has several consequences. One significant effect is the melting of glaciers and polar ice caps. These ice formations contain a substantial amount of the Earth's freshwater.

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