How do plants prevent soil erosion?
Why is vegetation important?
What are forests?
Why are they called green lungs?
Why are forests important for biodiversity?
What happens if forests disappear?
What is deforestation?
Why are forests being destroyed?
What are the effects of deforestation?
How does it affect climate?
Why should forests be conserved?
Is development still possible?
What is wildlife?
Why is it important?
Why are animals important in ecosystems?
What role do they play?
What is a food chain?
How does energy flow?
What is a food web?
Why is it more realistic?
Why are decomposers important?
What happens without them?
What is the nitrogen cycle?
Why is nitrogen important?
Why can’t plants use atmospheric nitrogen directly?
Isn’t nitrogen abundant?
What is the carbon cycle?
How does carbon keep moving?
Why are fossil fuels non-renewable?
Why can’t we replace them easily?
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