AI in Forestry Quiz

Answers and explanations appear as you take the quiz.

1. What does LiDAR primarily measure to help map forests?
   • Distance using timed laser pulses to build 3D structure
   • The chemical composition of leaves
   • Soil pH levels underground
   • Wind speed above the canopy
2. How do satellite-based GLAD alerts identify possible new deforestation?
   • Use only a chainsaw audio classifier
   • Compare recent Landsat images with historical imagery to flag canopy disturbance
   • Infer tree loss from a single weather station
   • Count fire trucks in a region
3. What does Rainforest Connection’s Guardian system analyze to detect illegal logging activity?
   • Only satellite radar images
   • Only tree-ring samples
   • Acoustic recordings for chainsaw patterns and other threats
   • A hotel booking database
4. Which inputs did a U.S. Forest Service fire-spread study use with machine learning?
   • Only tree species names
   • Hotel occupancy and room rates
   • Only satellite image captions
   • Weather, hydroclimate, fuels, and topography
5. Roughly how much of Earth's land is covered by forests?
   • About 31%
   • About 5%
   • About 60%
   • About 90%
6. Why is AI especially valuable for measuring forest carbon for offset markets?
   • It eliminates the need for any field measurements ever
   • It provides scalable, repeatable estimates of biomass across huge areas
   • It physically removes carbon from the air
   • It sets the legal price of carbon credits
7. How can LiDAR-derived canopy measurements contribute to biomass estimation?
   • They directly measure carbon content in every tree
   • They eliminate the need for field calibration
   • Canopy structure and height can be combined with reference data to estimate forest biomass
   • They identify tree species without any other data
8. Why do forest-biomass maps need independent validation?
   • Because satellites cannot capture any forest data
   • Because validation makes uncertainty disappear
   • Because every forest has the same biomass per hectare
   • Remote-sensing estimates depend on models and should be compared with reference measurements