Test: Forests Our Lifeline - UPSC MCQ

Kerosene is derived from petroleum and is a combustible hydro-carbon in liquid state. It is not derived from forests and so is not a forest product.

Forest products are materials that are derived from forests and forestry either for direct consumption or for commercial use. Gum, plywood and sealing wax are all obtained from forests for different purposes and so are categorized as forest products.

Microorganisms act upon the dead plants to produce humus the increase the fertility of soil.

Importance of trees and vegetation as wind breakers:

• Preventing dust storms: Trees and vegetation act as barriers that help reduce the speed and impact of winds, preventing the blowing of dust and sand which can cause dust storms.


• Preventing soil erosion: Trees and vegetation help hold the soil in place with their roots, preventing erosion caused by wind. This is crucial for maintaining fertile soil for agriculture and preventing landslides.


• Regulating oxygen and carbon dioxide levels: Trees play a vital role in the carbon cycle by absorbing carbon dioxide during photosynthesis and releasing oxygen. This helps maintain a balance in the levels of these gases in the atmosphere.


• Promoting biodiversity: Trees and vegetation provide habitats for a variety of wildlife, contributing to biodiversity and ecosystem health.


• Improving air quality: Trees help filter pollutants from the air, improving air quality and creating a healthier environment for humans and animals.


 

mushrooms and other micro-organisms feed on dead plant and animal tissues, playing a significant role in decomposing organic matter and recycling nutrients in the ecosystem. They do not feed on living animals, sunlight, or use water as a primary nutrient source. 

Humus is found in the top layer of the soil.

Wooden door, windows and chair are made of timber obtained from forest while polythene is manmade product.

Medicine, furniture and paper are obtained from plants but petrol is obtained from petroleum.

Plants convert CO₂ into O₂ during photosynthesis. Exchange of gases takes place through stomata.