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jedwardsearthsci
เข้าร่วมเมื่อ 19 มี.ค. 2014
Human history and the Anthropocene epoch
How have humans impacted our planet over their time on Earth? Why are scientists concerned, and why do they think we should give a special name to these impacts, the "Anthropocene"?
มุมมอง: 148
วีดีโอ
Natural Resources and Sustainability
มุมมอง 15K3 ปีที่แล้ว
How do we use the resources our planet supplies for us? Will we have enough for the future?
Blessings to you and your family... on natural resources question WHAT IS SILICA USED FOR PLANTS CAN WE GET SILICA NATURAL RESOURCES LIVE ON A TROPICAL ISLAND CAN WE FIND THIS THING CALLED SILICA HELP PLEASE GUAM USA
the music in the back keeps me wantint to watch ..thanks so much
Background music 😢
Very much helpful 😊 u better thn my teacher 🎉
Thank u so help full
thank u sir❤❤
Very helpful❤
Thanks, nice idead
Very insightful, however background music was very unnecessary!