Question

hi please write about humas , soil erosion, and water cycle well explained....

Answer 1

$\mathbb{\orange{\huge{Humus}}}$

Soil is a mixture of many things .It also contains parts of decayed living organisms.

Many organisms alongwith micro-organisms are also there which changes the quality of the soil.

It make the soil porous and easy to penetrate.The nutrients present in the soil depends upon the rocks from which it is made.

Humus can increase by use of Earth warm.

$\mathbb{\purple{\huge{Soil\:Erosion}}}$

The flowing away of topmost layer of soil by various forces such as water and air is called soil erosion.

$\mathbb{\pink{\huge{Water \:cycle}}}$

The water cycle,also known as the hydrogical cycle or hydrologic cycle.

$\mathbb{\blue{\huge{Thanks}}}$

Answer 2

Soil is a non-renewable resource that once it is eroded it is not renewed.  Soil erosion is the permanent change of the main characteristics of soil that could see it lose its fertility, pH, colour, humus content or structure.  Soil erosion occurs naturally by wind or harsh climatic conditions but human activities include overgrazing, overcropping and deforestation.