Tag: forests: our lifeline

Waldsterben refers to the mass death of the trees wherein, the peripheral parts of the plants are killed and slowly the entire forest population dwindles. It was first reported in Germany in the early 1980s. The atmospheric pollution was the main cause of such deaths of trees. Tropospheric ozone is the secondary pollutant. Nitrogen oxides and sulphur oxides are released by the industrial emissions and vehicular exhausts. Acid rain is the chemical reaction between these oxides and water to form their respective acids that precipitate with the rains. The pollutants have severe effects on the trees.

Deforestation is excessive cutting of the trees. it clears the land area which can cause the floods or may lead to infertility of the land. The most dramatic impact is a loss of habitat for millions of species. Seventy percent of Earth's land animals and plants live in forests, and many cannot survive the deforestation that destroys their homes.

Deforestation leads to the increased percentage of carbon dioxide components of the environment because trees provide oxygen by taking up carbon dioxide when their number reduces the carbon dioxide was unable to be converted into oxygen. That's why its components increases.

• Trees help keep soil in place by holding a large amount of soil with there roots.
• Without trees, rain runs off soil into rivers and streams, raising the water level which leads to floods.
  
• Planting trees acts to shield soil from the winds, and the mulch from fallen leaves forms a layer to protect the soil on the "forest" floor.
  
• Hence the forest helps the soil to prevent the flood.
• So, the correct answer is 'Forest'.

• Deforestation is when humans remove or clear large areas of forest lands and related ecosystems for non-forest use. These include clearing for farming purposes, ranching, and urban use. In these cases, trees are never re-planted.
• Plants absorb large amounts of carbon dioxide from the atmosphere. When deforestation takes place it results in an increase in carbon dioxide concentration in the atmosphere which results in global warming.
• Without trees, rain runs off soil into rivers and streams, raising the water level which leads to floods. Hence deforestation results in the flood.
  
• Deforestation also results in the extinction of flora and fauna(plants and animals).
• Hence The consequences of deforestation are  Global warming, Flood and Extinction of flora and fauna.
• So, the correct answer is 'All the above'.