Human eyes are always paired. What will happen if humans would have only one eye?

Options

A. the world would become two dimensional for humans
B. Humans will not be able to see objects beyond `90^@`
C. All the objects will appear faint
D. All of the above

Explanation

### Step-by-Step Solution:

1. **Understanding Binocular Vision**:
- Humans typically have two eyes, which allows for binocular vision. This means that both eyes work together to provide depth perception and a wider field of view.

2. **Depth Perception**:
- With two eyes, the brain can compare the slightly different images received from each eye to judge distances. If a human had only one eye, they would lose this ability to perceive depth accurately.

3. **Field of View**:
- Two eyes provide a broader field of view, allowing humans to see more of their surroundings at once. With one eye, the field of view would be significantly reduced, making it harder to detect objects outside of the direct line of sight.

4. **Visual Acuity**:
- Having two eyes can enhance visual acuity (sharpness of vision). With only one eye, a person might struggle with focusing on objects, especially those that are far away or moving.

5. **Impact on Activities**:
- Activities that require depth perception, such as driving, playing sports, or even simple tasks like pouring a drink, would become more challenging with only one eye.

6. **Compensatory Mechanisms**:
- While humans can adapt to having one eye, they would need to rely more on other senses (like hearing) and may develop compensatory strategies to navigate their environment.

### Conclusion:
If humans had only one eye, they would face significant challenges in depth perception, field of view, and visual acuity, affecting many daily activities and overall spatial awareness.

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