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  2. Toluene - Wikipedia

    en.wikipedia.org/wiki/Toluene

    Toluene is also found in cigarette smoke and car exhaust. If not in contact with air, toluene can remain unchanged in soil or water for a long time. [39] Toluene is a common solvent, e.g. for paints, paint thinners, silicone sealants, [40] many chemical reactants, rubber, printing ink, adhesives (glues), lacquers, leather tanners, and ...

  3. Marine food web - Wikipedia

    en.wikipedia.org/wiki/Marine_food_web

    A food web model is a network of food chains. Each food chain starts with a primary producer or autotroph, an organism, such as an alga or a plant, which is able to manufacture its own food. Next in the chain is an organism that feeds on the primary producer, and the chain continues in this way as a string of successive predators.

  4. Fluorocarbon - Wikipedia

    en.wikipedia.org/wiki/Fluorocarbon

    Perfluoroalkanes are very stable because of the strength of the carbon–fluorine bond, one of the strongest in organic chemistry. [4] Its strength is a result of the electronegativity of fluorine imparting partial ionic character through partial charges on the carbon and fluorine atoms, which shorten and strengthen the bond (compared to carbon-hydrogen bonds) through favorable covalent ...

  5. Food chain - Wikipedia

    en.wikipedia.org/wiki/Food_chain

    Food chain in a Swedish lake. Osprey feed on northern pike, which in turn feed on perch which eat bleak which eat crustaceans.. A food chain is a linear network of links in a food web, often starting with an autotroph (such as grass or algae), also called a producer, and typically ending at an apex predator (such as grizzly bears or killer whales), detritivore (such as earthworms and woodlice ...

  6. Aromatic compound - Wikipedia

    en.wikipedia.org/wiki/Aromatic_compound

    Heteroarenes are aromatic compounds, where at least one methine or vinylene (-C= or -CH=CH-) group is replaced by a heteroatom: oxygen, nitrogen, or sulfur. [3] Examples of non-benzene compounds with aromatic properties are furan, a heterocyclic compound with a five-membered ring that includes a single oxygen atom, and pyridine, a heterocyclic compound with a six-membered ring containing one ...

  7. Arctic blast to blanket much of US with below-freezing ...

    www.aol.com/arctic-blast-blanket-much-us...

    Millions of Americans should prepare for an Arctic blast that will blanket much of the country in below-freezing temperatures over the next several days. Frigid conditions are expected over a ...

  8. 17 Easy High-Protein Snacks for Weight Loss - AOL

    www.aol.com/17-easy-high-protein-snacks...

    Whip up this goat cheese–tomato toast to enjoy the fresh flavors of summer any time of the year. This sweet-and-savory combo makes a perfect breakfast, lunch or snack.

  9. 5 convicted in Amsterdam over violence against Israeli soccer ...

    www.aol.com/news/5-convicted-netherlands-over...

    A Dutch court convicted five men for their part in last month's violence against Israeli soccer fans in Amsterdam.