Why is air considered a natural resource?
We can’t see it-so why is it vital?
What is the composition of air?
Which gases matter most for life?
Why is oxygen essential for living organisms?
What happens without it?
Why do plants need carbon dioxide?
Isn’t CO₂ harmful?
What is the greenhouse effect?
Why isn’t Earth freezing cold?
Why is global warming a concern?
How does it affect living organisms?
What is ozone and why is it important?
How does it protect life?
What causes ozone depletion?
How are humans responsible?
Why is water a renewable resource?
Can water ever run out?
What is the water cycle?
How does water keep moving?
Why is freshwater important?
Can we drink seawater?
What is water pollution?
How does it harm life?
Why is soil considered a natural resource?
Isn’t it just dirt?
How is soil formed?
Why does it take so long?
Why is soil erosion harmful?
What happens when soil is lost?
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