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Air pollution is the presence of substances in the atmosphere that are harmful to humans and other living beings, or cause damage to the environment. Air pollution can be chemical, physical or biological. [1]
Pollution is the introduction of contaminants into the natural environment that cause harm. [1] Pollution can take the form of any substance (solid, liquid, or gas) or energy (such as radioactivity, heat, sound, or light).
The Convention applies to all seagoing vessels except warships or other vessels owned or operated by a State and used on Government non-commercial service.. While exercising the right to take measures "necessary to prevent, mitigate or eliminate grave and imminent danger to their coastline or related interests" from oil pollution, the coastal State is obligated to:
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The symmetry of a carbon dioxide molecule is linear and centrosymmetric at its equilibrium geometry. The length of the carbon–oxygen bond in carbon dioxide is 116.3 pm, noticeably shorter than the roughly 140 pm length of a typical single C–O bond, and shorter than most other C–O multiply bonded functional groups such as carbonyls. [19]
It will be quicker to reach net-zero emissions for CO 2 alone rather than CO 2 plus other greenhouse gases like methane, nitrous oxide and fluorinated gases. [22] The net-zero target date for non-CO 2 emissions is later partly because modellers assume that some of these emissions such as methane from farming are harder to phase out. [22]
Epidemiology is the study and analysis of the distribution (who, when, and where), patterns and determinants of health and disease conditions in a defined population, and application of this knowledge to prevent diseases.
Gerald Selbee broke the code of the American breakfast cereal industry because he was bored at work one day, because it was a fun mental challenge, because most things at his job were not fun and because he could—because he happened to be the kind of person who saw puzzles all around him, puzzles that other people don’t realize are puzzles: the little ciphers and patterns that float ...