Tag: natural resources - air, water and land

Soil formation is a complex process influenced by multiple factors including climate, organisms, parent material, topography, and time. All these factors interact to develop the soil structure.

Weathering is the physical and chemical breakdown of rocks, while pedogenesis is the broader process of soil development. Both are integral to the creation of soil.

Broad leaf corresponds to deciduous forest, growing squabble (likely a typo for social forestry/afforestation context) matches social forestry, soil erosion is caused by deforestation, and silviculture is the practice of afforestation.

Rain, wind, ice and temperature changes break the tough, hard parent material or rocks. This process is very slow but it steadily continues. Such broken parts are further withered by same factors as well as some other factors as acids etc. Therefore, wind, water and the Sun are involved in soil formation. 

Polythene bags are not involved in soil formation. However, plastic bags are threat to environment, because these bags are non-degradable, i.e., do not decay and thus, do not lead to soil formation.

Weathering is the primary geological process that breaks down rocks into smaller particles, which eventually become the mineral component of soil.

• Soil nature is described in pH values. It can be alkaline, acidic or neutral. 
• Highly acidic and highly saline soil often remains injurious for plant growth, microorganisms, etc. 
• Soil pH strongly affects microbial activities. Neutral or slightly acidic soil (5.5-6.5) remains best for the growth of the majority of plants.

The ozone layer is mainly found in the lower portion of the stratosphere, from approximately 20 to 30 kilometres above Earth, which shields the earth from the sun's harmful ultraviolet radiations. Ozone gas is present in 10 ppm in this ozone layer.

Soil is a complex mixture consisting of mineral particles, organic matter (humus), water, and air, which together provide the necessary components for plant growth.

Clay soil has very small particles that hold water tightly. When it dries, the loss of water causes the clay particles to shrink significantly, leading to the formation of large cracks.