If the greenhouse effect becomes real and melts polar ice, which one of the following regions will first disappear under water ?

Options

A. Hawai Island
B. Maldives
C. Mauritius
D. Islands of Kiribati

Answer

To determine which region will first disappear under water if the greenhouse effect leads to the melting of polar ice, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Greenhouse Effect**: The greenhouse effect refers to the warming of Earth’s surface due to the trapping of heat by greenhouse gases in the atmosphere. If this effect intensifies, it can lead to global warming, which in turn causes polar ice to melt.

2. **Identify the Impact of Melting Ice**: When polar ice melts, it contributes to rising sea levels. Regions that are low-lying and close to sea level are more vulnerable to flooding as sea levels rise.

3. **Analyze the Options**: The options given are:
- Hawaii Island
- Maldives
- Mauritius
- Kiribati

4. **Geographical Location**:
- **Hawaii** is located in the Northern Hemisphere.
- **Maldives** and **Mauritius** are near the equator.
- **Kiribati** is located in the Pacific Ocean and is closer to the equator but also has some islands that are relatively low-lying.

5. **Determine Proximity to the Poles**: Since the question asks about regions that will disappear first under water due to melting polar ice, we need to consider which of these regions is closest to the poles:
- Hawaii is farthest from the poles.
- Maldives and Mauritius are also relatively far from the poles.
- Kiribati, while not at the poles, is closer to the equator and has low-lying islands that are more susceptible to rising sea levels.

6. **Conclusion**: Among the options, Kiribati is likely to be the first to disappear under water due to its low elevation and proximity to rising sea levels caused by melting polar ice.

### Final Answer:
**Kiribati**