ಈ Publication Issue ನಿಮ್ಮ ಭಾಷೆಯಲ್ಲಿ ಅಸ್ತಿತ್ವದಲ್ಲಿಲ್ಲ, ರಲ್ಲಿ ವೀಕ್ಷಿಸಿ: English (en),
ಅಥವಾ Google Translate ಬಳಸಲು:  

Students will demonstrate their understanding of ways to improve and conserve soil as they email an ECHO intern in Africa, respond to a quote from the 19th century warning of civilizations’ impact on soil, and investigate the “Dust Bowl” soil disaster in U.S. history.