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  2. BBC Bitesize - Wikipedia

    en.wikipedia.org/wiki/BBC_Bitesize

    GCSE Bitesize was launched in January 1998, covering seven subjects. For each subject, a one- or two-hour long TV programme would be broadcast overnight in the BBC Learning Zone block, and supporting material was available in books and on the BBC website. At the time, only around 9% of UK households had access to the internet at home. [3]

  3. Biological carbon fixation - Wikipedia

    en.wikipedia.org/wiki/Biological_carbon_fixation

    Cyanobacteria such as these carry out photosynthesis.Their emergence foreshadowed the evolution of many photosynthetic plants and oxygenated Earth's atmosphere.. Biological carbon fixation, or сarbon assimilation, is the process by which living organisms convert inorganic carbon (particularly carbon dioxide, CO 2) to organic compounds.

  4. BBC Children's and Education - Wikipedia

    en.wikipedia.org/wiki/BBC_Children's_and_Education

    The logo for BBC Children's & Education. BBC Children's and Education [1] is the BBC division responsible for media content for children in the UK. Since the launch of specially dedicated television channels in 2002, the services have been marketed under two brands.

  5. Breathing - Wikipedia

    en.wikipedia.org/wiki/Breathing

    Real-time magnetic resonance imaging of the human thorax during breathing X-ray video of a female American alligator while breathing. Breathing (spiration [1] or ventilation) is the rhythmical process of moving air into and out of the lungs to facilitate gas exchange with the internal environment, mostly to flush out carbon dioxide and bring in oxygen.

  6. Climate change in the United Kingdom - Wikipedia

    en.wikipedia.org/wiki/Climate_change_in_the...

    Q4 2022 statistics are similar, with low carbon electricity generation (which includes nuclear) at 57.9% of total electricity generation (same as Q4 2021). [70] Wind energy production was 26,000 GWh in Q4 2022 (from 2,300 GWh in Q1 2010), and the installed capacity of 29,000 MW (5,000 in 2010) [71] ranked the UK 6th in the world in 2022.

  7. Bioenergetics - Wikipedia

    en.wikipedia.org/wiki/Bioenergetics

    Bioenergetics is a field in biochemistry and cell biology that concerns energy flow through living systems. [1] This is an active area of biological research that includes the study of the transformation of energy in living organisms and the study of thousands of different cellular processes such as cellular respiration and the many other metabolic and enzymatic processes that lead to ...

  8. Carbon footprint - Wikipedia

    en.wikipedia.org/wiki/Carbon_footprint

    The carbon footprint explained Comparison of the carbon footprint of protein-rich foods [1]. A formal definition of carbon footprint is as follows: "A measure of the total amount of carbon dioxide (CO 2) and methane (CH 4) emissions of a defined population, system or activity, considering all relevant sources, sinks and storage within the spatial and temporal boundary of the population, system ...

  9. Greenhouse gas emissions by the United Kingdom - Wikipedia

    en.wikipedia.org/wiki/Greenhouse_gas_emissions...

    The target for 2030 is a 68% reduction compared with 1990 levels. [9] The UK has been successful in keeping its economic growth alongside taking climate change action. Since 1990, the UK'a greenhouse gas emissions have reduced by 44% while the economy has grown by around 75% up until 2019. [10]