Question

what is
1. percolation.
2.Leaching
3. weathering.
4.Runaway​

Answer 1

Answer:

1. In physics, chemistry and materials science, percolation refers to the movement and filtering of fluids through porous materials. It is described by Darcy's law. 

2. In agriculture, leaching is the loss of water-soluble plant nutrients from the soil, due to rain and irrigation. Soil structure, crop planting, type and application rates of fertilizers, and other factors are taken into account to avoid excessive nutrient loss

Answer 2

$\star\pink{Percolation}\star$

• Percolation is the process of a liquid slowly passing through a filter.

$\star\pink{Leaching}\star$

• Leaching is a process in which water - soluble substances are washed out from the soil.

$\star\pink{Weathering}\star$

• Weathering is the breaking down of rocks,soils and minerals as well as wood and artificial materials through contact with the Earth's atmosphere, water and biological organisms.

$\star\pink{Runaway}\star$

• Runaway is the passing of soil and other substance by rain.