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Coal is not returning from the dead. The world never stopped needing it. The post Coal’s Real Value Is Optionality appeared first on Watts Up With That?.

Coal’s Real Value Is Optionality

Ten Tiny Changes That Can Improve Your Mental Well-Being Better doesn’t always require bigger. Try a few small changes: Go outside. Put the phone down. Take a walk. Say no occasionally. Call someone you enjoy. Stop rereading the same bad news. Leave some room in your schedule. Celebrate something small. Get enough sleep. Give yourself…

Tiny Changes

The processes of eluviation and illuviation are the main forces in soil horizonation and give rise to the many layers of soil you see in a soil profile. The two processes combine to create a natural filtration system that changes soil at every level.

Eluviation
Eluviation is defined as the movement of dissolved or suspended substances away from the higher layers of the soil by rainwater that moves downward.It is the natural process in which rainwater moves downward through the soil, removing dissolved minerals, clay, and organic matter from the top layers.

It occurs in the A horizon and E horizon of the soil. Clay-sized particles, organic matter, iron, aluminium, etc., are washed away. There is coarse and light-colored soil left in the upper part of the soil.

Illuviation
Illuviation is defined as the accumulation of the washed material in the lower part of the soil. Water deposits substances as it slows at a certain layer.It happens mostly in the B horizon. The clay and humus are transported downward.This layer becomes dense and heavy in clay.

The role of climate

These processes depend highly on water. Water is a vital factor.

• Humid climate: Huge rainfall leads to very heavy processes of eluviation and illuviation.
• Dry climate: There is very little rainfall, and therefore, there is no significant soil horizon formation.

Readings:

Processes of Soil Formation

Factors Affecting Process of Soil Formation

What is Soil?: Definition, Composition, Types and Functions

Podzolization of Soil