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  2. Electric battery - Wikipedia

    Their chemical reactions are generally not reversible, so they cannot be recharged. When the supply of reactants in the battery is exhausted, the battery stops producing current and is useless. Secondary batteries can be recharged; that is, they can have their chemical reactions reversed by applying electric current to the cell. This ...

  3. Toxicity of plastics - Blastic

    Since additives can form a large proportion of the plastic mass, their leaching may form a substantial amount of all chemical substances leaching out of plastic material. For example PVC may contain more than 40 % by weight of plasticizers, mostly phthalates. The amounts of chemical emissions depend on various factors.

  4. Dive into the world of science! Read these stories and narratives to learn about news items, hot topics, expeditions underway, and much more.

  5. The Collapse of Communism in Eastern Europe: A 30-Year Legacy. The Collapse of Communism in Eastern Europe: A 30-Year Legacy. This collection includes a broad sampling of articles from the National Intelligence Daily—the CIA's principal form of current intelligence analysis at the time—from February 1989 to March 1990.

  6. Ukraine war latest: Moscow and US suggest talks to end war ...

    Biden and the Kremlin hint peace talks are possible; up to 13,000 Ukrainian troops have been killed since the war with Russia began, a top official claims; listen to the Daily podcast while you ...

  7. Stacey Davis (left, centre and custody photo inset), 35, left her one-year-old son Ethan (right) alone in his cot for two hours while she ran errands and visited a park near her home in Melksham ...

  8. Soil Biology and Biochemistry | Journal | ...

    How soil biology interacts with soil physical and chemical properties and processes to regulate belowground functions ; Relationships and functional interactions between soil biota and plants ; The effects of soil organisms on ecosystem dynamics across spatial and temporal scales

  9. ExxonMobil

    ExxonMobil is committed to producing the energy and chemical products that are essential to modern life, economic development and improved standards of living. In doing this, we are also committed to protecting our people, the environment and the well-being of communities where we operate.

  10. Andrew File System Retirement - Technology at MSU

    Andrew File System (AFS) ended service on January 1, 2021. AFS was a file system and sharing platform that allowed users to access and distribute stored content. AFS was available at an…

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    Sydney Water's role goes far beyond supplying water, wastewater, recycled water and stormwater services. From the health of the city and its people, to managing the environment and the health of our waterways we're helping to create a better life for Greater Sydney.