Sci-Five | The Hindu Science Quiz: On Soil

1 / 5 |
What are the six layers of healthy soil called?

• Horizons
• Layers
• Strata
• Levels

2 / 5 |
What does the topsoil layer mainly consist of?

• Minerals
• Organic matter like plant and animal residues
• Bedrock
• Water

3 / 5 |
Which organisms are examples of soil dwellers?

• Earthworms and tardigrades
• Fish and frogs
• Birds
• Snails and coral

4 / 5 |
How does soil contribute to the fight against climate change?

• By absorbing water
• By storing more carbon than the atmosphere and all forests combined
• By filtering air pollutants
• By cooling the Earth’s surface

5 / 5 |
How long does it take for a single centimetre of topsoil to form?

• 10 years
• 100 years
• 1,000 years
• 10,000 years