Pexels / Pixabay By NASA images produced by Reto Stockli and Jesse Allen, using data provided by the MODIS Land Science Team. Caption by Michon Scott. [Public domain], via Wikimedia Commons Nettilähteitä: Discovering Physical Geography (Flash- animaatioita): Regional Pedogenic Processes Soil Horizon Development Artikkelien selaus Ihmisen tunnistaminen Ravinto ja ruuansulatus
