What percentage of Earth's land surface is covered by forests?, A. 10%, B. 31%, C. 50%, D. 75%, What is the main definition of deforestation?, A. Planting new trees in a park, B. Natural forest growth, C. Permanent removal of trees for non-forest uses, D. Seasonal leaf falling in autumn, Commercial agriculture is responsible for what percentage of tropical deforestation?, A. Over 80%, B. Around 20%, C. Less than 5%, D. Exactly 50%, Which cash crop is widely used in supermarket goods and drives major deforestation in Southeast Asia?, A. Wheat, B. Palm oil, C. Rice, D. Cotton, How percentage of all terrestrial wildlife and plants live in forests?, A. 20%, B. 50%, C. 80%, D. 99%, How do trees help reduce global climate change?, A. By emitting oxygen only at night, By absorbing carbon dioxide, By increasing soil temperature, By blocking all sunlight, What happens when trees are cut down, burned, or left to decay?, A. They produce fresh rain, B. They absorb more soil water, C. They release stored carbon back into the atmosphere, D. They cool down the planet, What natural phenomenon is prevented by tree roots anchoring the soil?, A. Earthquakes, B. Volcanic eruptions, C. Soil erosion and landslides, D. Hurricanes, Why does deforestation increase the risk of infectious diseases in humans?, A. Wild animals move closer to human settlements, B. Trees spread viruses directly, C. Rainwater becomes completely toxic, D. People eat more vegetables, Which action is an effective solution to fight deforestation?, A. Burning more primary forests, B. Expanding illegal logging, C. Practicing sustainable agriculture and reforestation, D. Building more highways in nature reserves

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