Write a brief description of Introduction to Natural Resources
Science
Class 9
1352
Alexandria
The resources of the earth are land, water and air. Other resources include fossil fuels, sunlight, wind, minerals, etc. Biotic factors are referred to as living things in the ecosystem. Air, water and soil form the non-living or abiotic components of the biosphere.
Air and Air Pollution : An atmosphere is a layer of gases that surrounds a planet. Atmospheric air has 78% nitrogen, 21% oxygen and, 1% of other gases by volume.
Introduction to Natural Resources : The resources of the earth are land, water and air. Other resources include fossil fuels, sunlight, wind, minerals, etc.
Air Pollution : An atmosphere is a layer of gases that surrounds a planet. Atmospheric air has 78% nitrogen, 21% oxygen and, 1% of other gases by volume.
Air pollution is caused by the introduction of pollutants, organic molecules, or other unsafe materials into Earth’s atmosphere.
Water: A natural resource
Water pollution is the contamination of water bodies, caused by discharging pollutants directly or indirectly into the fresh and clean water bodies without adequate treatment.
The main causes of water pollution are
Bio-geo-chemical cycle : The natural cycle or pathways in which the essential matter is circulated through the biotic and abiotic parts of an ecosystem.
Biogeochemical = Biological Chemical + Geological Process
Carbon cycle: The circulation and transformation of carbon between living things and the environment is called the Carbon Cycle.
Nitrogen Cycle : The nitrogen cycle is the recycling and reusing of nitrogen in different forms to meet the demands for various environmental activities.
Oxygen Cycle : It is a biological process which helps in maintaining the oxygen level. Photosynthesis is a biological process used by plants to prepare their food with the help of sunlight and energy.