Hydrological cycle is controlled by

Options

A. Grasslands
B. Forests
C. Planktons
D. Epiphytes

Answer

### Step-by-Step Solution:

1. **Understanding the Hydrological Cycle**: The hydrological cycle, also known as the water cycle, describes the continuous movement of water within the Earth and atmosphere. It involves processes such as evaporation, condensation, precipitation, and runoff.

2. **Identifying the Role of Forests**: Forests play a crucial role in the hydrological cycle. They contribute to moisture recycling through processes like transpiration, where trees absorb water from the soil and release it into the atmosphere as water vapor.

3. **Transpiration and Weather Patterns**: The process of transpiration not only helps in maintaining humidity levels but also influences local weather patterns. The moisture released into the atmosphere can lead to increased rainfall in nearby areas.

4. **Moisture Movement**: As moist air rises, it cools and loses moisture in the form of precipitation (rain). This rain replenishes water sources on land, which eventually flows back to oceans and rivers, completing the cycle.

5. **Comparing Other Options**:
- **Grasslands**: These areas have limited vegetation (mostly grasses) and do not significantly contribute to the hydrological cycle.
- **Plankton**: While they are important in aquatic ecosystems, plankton have little to no role in the terrestrial aspects of the hydrological cycle.
- **Epiphytes**: These are plants that grow on other plants and derive moisture from the air but do not have a significant impact on the overall hydrological cycle.

6. **Conclusion**: Given the significant role forests play in moisture recycling and influencing weather patterns, the correct answer to the question is that the hydrological cycle is controlled by forests.