Tag: geography

The speed of wind can be measured using a tool called an anemometer. An anemometer looks like a weather vane, but instead of measuring which direction the wind is blowing with pointers, it has four cups so that it can more accurately measure wind speed. When wind pushes into the cups, they rotate the axis.

Anemometer consists of four cups attached to four horizontal spokes that are mounted on a high vertical spindle. An anemometer is a device used for measuring wind speed and direction. It is also a common weather station instrument.

When warm air rises, cooler air will often move in to replace it, so wind often moves from areas where it's colder to areas where it's warmer. So in the northern hemisphere, winds blow clockwise around an area of high pressure and counter-clockwise around low pressure.

The human population explosion is the major cause of environmental degradation to which other causes are connected. Uncontrolled growth of the human population resulted in excessive use of resources and depletion of natural resources. Industrialization is being done for fulfilling demands that are contributing to air, land and water pollution. Agricultural lands are decreasing day by day and forests are being cut for residential and industrial purposes leading to deforestation which is causing land degradation and soil erosion. Over-farming and excessive use of resources are deteriorating the environment rapidly in all aspects.

Integrated solid waste management involves the comprehensive process of dealing with waste such as collection, recycling, source reduction, transportation, and landfilling. The waste gets completely treated and safe disposal is made after all the process that renders waste reusable, reduced and recycled.

Biogas is obtained from organic waste. Biogas is a gaseous fuel which is a mixture of different gases that are formed by break down of organic matter in the absence of oxygen. Raw materials such as agricultural waste, manure, municipal waste, plant material, sewage, green waste or food waste are used for the production of biogas.

Nuclear power plants involve the use of radioactive elements such as uranium. Nuclear weapons are built by utilizing several radioactive elements that have the most destructive capacity. X-rays used in diagnostic purpose expose people to radioactive radiation. These are all man-made radioactive radiations.

Addition of phosphates and nitrates/fertilizers into water leads to nutrient enrichment which is also called as eutrophication. It is the enrichment of water bodies with excessive nutrients and fertilizers. This is a kind of water pollution, because excessive nutrients result in growth of plants and algae which consume oxygen present.

• Addition of phosphates and nitrates/fertilizers into water leads to nutrient enrichment which is also called as eutrophication. 
  
• This is a kind of water pollution, because excessive nutrients result in growth of plants and algae over water surface which consume oxygen present and obstructs the light from entering the water.
  

Effective waste management requires the preventive step as the first stage that is to produce less waste by taking into use the most essential things so that waste is not generated in excessive quantity. Next, it involves reusing of waste material by utilizing its productivity if it is not made disposal after a single-use. Further, it involves the recycling of waste, which can be made to use in one form or another and separating it from toxic substances. The last step involves the disposal of waste which is useless and can’t be brought into use.