Sweet Potatoes, often called âyamsâ, are a dicot (a plant having two embryonic seed leaves) and are from the Convolvulacea or morning glory family.Yams. Yams are closely related to lilies and grasses. Native to Africa and Asia, yams vary in size from that of a small potato to a record 130 pounds (as of 1999).ams are a monocot (a plant having one embryonic seed leaf) and from the Dioscoreaceae or Yam family. Yams. Yams are closely related to lilies and grasses. Native to Africa and Asia, yams vary in size from that of a small potato to a record 130 pounds (as of 1999).
A: Radon is an odorless radioactive gas that results from the breakdown of uranium. Uranium is present in most of the soil and rock around the world. It is typically concentrated in areas with lots of granite, shale, phosphate and pitchblende.: Because radon is a gas, it can leak into your house through the basement or crawl space--via adjacent or exposed soil and rock--or through well water.
Radon is a colorless, odorless, radioactive gas. It forms naturally from the decay (breaking down) of radioactive elements, such as uranium, which are found in different amounts in soil and rock throughout the world.eing exposed to radon for a long period of time can lead to lung cancer. Radon gas in the air breaks down into tiny radioactive elements (radon progeny) that can lodge in the lining of the lungs, where they can give off radiation. This radiation can damage lung cells and eventually lead to lung cancer.