PPT Slide Slide 1 of 63 Pictures from space have shown the beauty of earth, its deep blue seas, flat plains, and majestic peaks. Cities are sprinkled on this tranquil landscape and at night glitter like fire-flies.
Rivers run through the land and empty their water, often stained brown, into the oceans.
Join us now to look at the skin of the earth and marvel at its variety. Whether you see it with your unaided eyes on a road-bank or a soil pit, or if you see it with a hand lens or with a microscope, you are going to be fascinated.