Watch “7 Outrageous Amphibious Vehicles You Have To See” on YouTube by onevorld · January 1, 2019 Something that travels on treacherous terrain, under and over water. https://youtu.be/jtHNRxVZy9g
Watch “Saving rain water / Making Swales / Water irrigation in the tropics / Growing food in Asia” on YouTube July 16, 2019
