primary carbon secondary hydrogen sulfur oxygen nitrogen

  • Photosynthesis - Wikipedia

    Photosynthetic organisms are photoautotrophs, which means that they are able to synthesize food directly from carbon dioxide and water using energy from light. However, not all organisms that use light as a source of energy carry out photosynthesis; photoheterotrophs use organic compounds, rather than carbon dioxide, as a source of carbon.

  • Explosive material - Wikipedia

    An explosive material, also called an explosive, is a reactive substance that contains a great amount of potential energy that can produce an explosion if released suddenly, usually accompanied by the production of light, heat, sound, and pressure.

  • Water Research Center - Hydrogen Sulfide, Rotten …

    Sulfur Gas, Hydrogen Sulfide, Rotten Egg Odors - Clean Drinking Water Systems

  • Pearson - The Biology Place - Prentice Hall

    BioCoach Activity Concept 1: CHNOPS: The Six Most Abundant Elements of Life. Most biological molecules are made from covalent combinations of six important elements, whose chemical symbols are CHNOPS.

  • Secondary Metabolites in Plants - Biology …

    Secondary metabolites are chemicals produced by plants for which no role has yet been found in growth, photosynthesis, reproduction, or other "primary" functions.

  • Pollution – Just Facts

    Comprehensive and meticulously documented facts about pollution. Learn about air and water pollution, natural pollution, indoor pollution, and more.

  • Chemistry the science of Matter - Basic Knowledge …

    Chemistry Chemistry is the Science of Matter; The branch of the natural sciences dealing with the Composition of Substances and their Properties and Reactions.

  • Photosynthesis - Wikipedia

    Photosynthetic organisms are photoautotrophs, which means that they are able to synthesize food directly from carbon dioxide and water using energy from light. However, not all organisms that use light as a source of energy carry out photosynthesis; photoheterotrophs use organic compounds, rather than carbon dioxide, as a source of carbon.

  • Explosive material - Wikipedia

    An explosive material, also called an explosive, is a reactive substance that contains a great amount of potential energy that can produce an explosion if released suddenly, usually accompanied by the production of light, heat, sound, and pressure.

  • Water Research Center - Hydrogen Sulfide, Rotten …

    Sulfur Gas, Hydrogen Sulfide, Rotten Egg Odors - Clean Drinking Water Systems

  • Pearson - The Biology Place - Prentice Hall

    BioCoach Activity Concept 1: CHNOPS: The Six Most Abundant Elements of Life. Most biological molecules are made from covalent combinations of six important elements, whose chemical symbols are CHNOPS.

  • Secondary Metabolites in Plants - Biology …

    Secondary metabolites are chemicals produced by plants for which no role has yet been found in growth, photosynthesis, reproduction, or other "primary" functions.

  • Chemistry the science of Matter - Basic Knowledge …

    Chemistry Chemistry is the Science of Matter; The branch of the natural sciences dealing with the Composition of Substances and their Properties and Reactions.

  • Photosynthesis - Wikipedia

    Photosynthetic organisms are photoautotrophs, which means that they are able to synthesize food directly from carbon dioxide and water using energy from light. However, not all organisms that use light as a source of energy carry out photosynthesis; photoheterotrophs use organic compounds, rather than carbon dioxide, as a source of carbon.

  • Explosive material - Wikipedia

    An explosive material, also called an explosive, is a reactive substance that contains a great amount of potential energy that can produce an explosion if released suddenly, usually accompanied by the production of light, heat, sound, and pressure.

  • Water Research Center - Hydrogen Sulfide, Rotten …

    Sulfur Gas, Hydrogen Sulfide, Rotten Egg Odors - Clean Drinking Water Systems

  • Pearson - The Biology Place - Prentice Hall

    BioCoach Activity Concept 1: CHNOPS: The Six Most Abundant Elements of Life. Most biological molecules are made from covalent combinations of six important elements, whose chemical symbols are CHNOPS.

  • Secondary Metabolites in Plants - Biology …

    Secondary metabolites are chemicals produced by plants for which no role has yet been found in growth, photosynthesis, reproduction, or other "primary" functions.

  • Chemistry the science of Matter - Basic Knowledge …

    Chemistry Chemistry is the Science of Matter; The branch of the natural sciences dealing with the Composition of Substances and their Properties and Reactions.