Introduction:
Rain is a natural phenomenon in which water droplets fall from the atmosphere to the Earth's surface. It is a vital part of the Earth's water cycle and plays a crucial role in maintaining the balance of water resources on our planet. The rain descends to the Earth for several reasons, primarily to wash the drought and provide water.

Reasons why rain descends to the Earth:

1. Water Cycle:
Rain is an essential part of the water cycle, also known as the hydrological cycle, which involves the constant movement and exchange of water between the atmosphere, land, and oceans. The water cycle consists of various processes, including evaporation, condensation, and precipitation. When the sun's heat causes water bodies like oceans, lakes, and rivers to evaporate, the water vapor rises into the atmosphere. As the water vapor cools down, it condenses into tiny droplets, forming clouds. When these droplets become too heavy, they fall back to the Earth as rain.

2. Providing Water:
Rain is a primary source of freshwater on Earth. It replenishes water resources such as rivers, lakes, and underground aquifers. It is crucial for maintaining the water balance in ecosystems and sustaining life on Earth. Rainfall provides water for drinking, irrigation, and various industrial purposes. It plays a vital role in agriculture, helping crops grow and ensuring food production.

3. Washing away Drought:
Rainfall helps alleviate drought conditions by providing much-needed moisture to dry and arid regions. It helps to replenish groundwater levels and restore moisture in the soil, which is essential for plant growth. Regions experiencing drought rely on rain to revive vegetation, support wildlife, and maintain ecological balance.

4. Supporting Life:
Rainfall is essential for the survival of all forms of life on Earth. It not only provides water for drinking and irrigation but also creates suitable conditions for various organisms to thrive. Rainwater fills up rivers and lakes, creating habitats for aquatic plants and animals. It also nourishes plant life on land, supporting the growth of forests, grasslands, and agricultural crops. Additionally, rain helps to cleanse the atmosphere by washing away pollutants and dust particles.

Conclusion:
Rainfall is a vital natural phenomenon that provides numerous benefits to the Earth and its inhabitants. It washes away drought, provides water for various purposes, supports life, and contributes to the overall health of the planet. The descent of rain is an integral part of the water cycle and is essential for maintaining the balance of water resources on Earth.