Nature's Treasures - Resources We Use

Natural resources are materials provided by nature that are essential for the survival and well-being of living organisms, including $Air$, $Water$, $Soil$, $Minerals$, $Forests$, and $Wildlife$.

Resources are classified into two main types: Inexhaustible (Renewable) resources like $Solar\ Energy$ and $Wind\ Energy$, and Exhaustible (Non-renewable) resources like $Coal$ and $Petroleum$.

Fossil fuels are formed from the remains of dead plants and animals buried under the earth for millions of years. Examples include coal, petroleum, and natural gas ($CH_4$).

Soil is a vital resource formed by the weathering of rocks. It consists of layers known as horizons: $A-horizon$ (Topsoil), $B-horizon$ (Subsoil), and $C-horizon$ (Parent Rock).

Air is a mixture of gases: Nitrogen ($N_2 \approx 78\%$), Oxygen ($O_2 \approx 21\%$), and Carbon Dioxide ($CO_2 \approx 0.03\%$) along with water vapor and dust particles.

Water is an inexhaustible resource but the amount of fresh water available for use is limited. The process of $Rainwater\ Harvesting$ is used to conserve water by collecting and storing rain for later use.

Forests are 'Green Lungs' of nature because they maintain the balance of oxygen ($O_2$) and carbon dioxide ($CO_2$) in the atmosphere through photosynthesis: $6CO_2 + 6H_2O \rightarrow C_6H_{12}O_6 + 6O_2$.