Seeds by Type. Find mixtures for your region, or for special uses such as dry areas, partial shade, attracting animals, low growing, and more. Over 75 choices that will bloom in the second year and for years to come. Over 110 choices for fast color, such as poppies, cosmos, sunflowers, zinnia, and many more. Help the birds, bees, butterflies & hummingbirds by planting wildflowers. Wildflower seeds native to your region.
Swamp gas is the common name for the hydrogen sulfide from decaying matter. In small amounts, hydrogen sulfide is relatively harmless. However, it becomes quite dangerous when present in large amounts, especially in confined spaces.
Because fossil fuels form from the remains of plants and animals, all fossil fuels contain carbon, too. Most of the carbon in fossil fuels exists as hydrocarbons, which are hydrogen-carbon compounds. Fossil fuels may exist as liquids, gases, or solids.Liquid Fossil Fuels: Petroleum A liquid mixture of complex hydrocarbon compounds is called petroleum.oal is a fossil fuel that forms underground from partially decomposed plant material. Coal was once the major source of energy in the United States. When fossil fuels, including coal, are burned, most of the energy released is heat.