Renewable and Non-Renewable Resources

1.The Municipal Officers Recently Cut Some Trees Along the Main Road. Will They Grow Again?

• Yes, municipal officers mostly cut the branches of trees before the rainy season to avoid accidental falling of branches on the road.
• When trees are cut up to a certain height leaving their trunk and roots unharmed, they can grow again.

2.If We Are Receiving Rainfall Every Year, Why Are People Digging Deeper and Deeper Into Borewells?

• The rains are getting irregular and less frequent every year. People are relying on groundwater as a resource.
• Due to overuse, the aquifers that collect the rainwater runoff under the ground are getting dry.
• So, people in search of water, dig deeper and deeper into borewells.

3.Can We Make Liquid Fuel From the Smoke From the Vehicles?

• No, the liquid fuel is oxidised to produce heat and energy.
• This change is permanent and cannot be reversed.

4.What Is Overgrazing? Why Does It Harm Nature?

• Eating grass by cattle to such an extent that it cannot replenish or regrow is called overgrazing.
• Soil covered with grass is less prone to erosion.
• The soil not covered by vegetation loses its nutrients due to erosion and becomes infertile.
• Hence overgrazing harms nature.