How trees bring rainfall ? Tree vs Rain SCIENCE COLLECTOR

A tree is a tall plant that can live for a very long time. It has a single stem or trunk and branches that support leaves. Beneath the ground, a tree has a root system that acts as an anchor and stores the water and nutrients the plant needs to grow.

Trees are vital. As the biggest plants on the planet, they give us oxygen, store carbon, stabilise the soil and give life to the world's wildlife. They also provide us with the materials for tools and shelter.

Trees reduce the 'Greenhouse' effect by removing carbon dioxide from the air and releasing oxygen. Each year a mature tree produces enough oxygen for 10 people. Trees are also an effective sound barrier and can limit noise pollution. Recent research shows that trees also help reduce the stress of modern life.

Planting more trees brings rain because plants transpire. Transpiration is a process by which aerial parts of the plants lose water as water vapor during photosynthesis. this water is added to the normal moisture of the air thus making the air saturated faster and bringing rain.

The forest creates fresh water runoff for the streams and rivers, and helps pull rainfall in coastal areas inland. In India, deforestation has caused a 30% drop in rainfall.

The roots of trees hold the soil tightly, when trees are removed from the soil, the soil becomes loose and thus soil erosion and floods increase to manifolds. Thus, deforestation has a major effect on the environment and the water cycle which leads to a decrease in rainfall.

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