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  2. Climate of Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/Climate_of_Pennsylvania

    Tropical cyclones normally threaten the states during the summer and fall, with their main impact being rainfall. [3] Although Hurricane Agnes was barely a hurricane at landfall in Florida, its major impact was over the Mid-Atlantic region, where Agnes combined with a non-tropical low to produce widespread rains of 6 inches (150 mm) to 12 inches (300 mm) with local amounts up to 19 inches (480 ...

  3. Carbon dioxide - Wikipedia

    en.wikipedia.org/wiki/Carbon_dioxide

    At a pressure of 1 atm (0.101325 MPa), the gas deposits directly to a solid at temperatures below 194.6855(30) K [2] (−78.4645(30) °C) and the solid sublimes directly to a gas above this temperature. In its solid state, carbon dioxide is commonly called dry ice. Pressuretemperature phase diagram of carbon dioxide. Note that it is a log ...

  4. Climate of the Tampa Bay area - Wikipedia

    en.wikipedia.org/wiki/Climate_of_the_Tampa_Bay_area

    Cumulus clouds building over the Tampa Convention Center on a summer afternoon. The warm and rainy season typically begins in late May and runs through October. [5] Average high temperatures are in the low 90s °F (around 32 °C) with lows in the mid-70s °F (around 24 °C) during this period, and the combination of warm temperatures and high humidity brings an almost daily chance of rain and ...

  5. Radon - Wikipedia

    en.wikipedia.org/wiki/Radon

    At standard temperature and pressure, it forms a monatomic gas with a density of 9.73 kg/m 3, about 8 times the density of the Earth's atmosphere at sea level, 1.217 kg/m 3. [16] It is one of the densest gases at room temperature (a few are denser, e.g. CF 3 (CF 2 ) 2 CF 3 and WF 6 ) and is the densest of the noble gases.

  6. Climate of Perth - Wikipedia

    en.wikipedia.org/wiki/Climate_of_Perth

    Perth, the capital city of the state of Western Australia, has a Mediterranean climate (Köppen climate classification Csa), with hot, dry summers and mild, wet winters.. February is the hottest month of the year, with an average high of 31.7 °C (89.1 °F), and July is the coldest month of the year, with an average low of 8.1 °C (46.6 °F). 77.7% of rain in Perth falls between May and Septe

  7. Sun - Wikipedia

    en.wikipedia.org/wiki/Sun

    At the photosphere, the temperature has dropped 350-fold to 5,700 K (9,800 °F) and the density to only 0.2 g/m 3 (about 1/10,000 the density of air at sea level, and 1 millionth that of the inner layer of the convective zone).

  8. Venus - Wikipedia

    en.wikipedia.org/wiki/Venus

    The surface pressure is 9.3 megapascals (93 bars), and the average surface temperature is 737 K (464 °C; 867 °F), above the critical points of both major constituents and making the surface atmosphere a supercritical fluid of mainly supercritical carbon dioxide and some supercritical nitrogen.

  9. pH - Wikipedia

    en.wikipedia.org/wiki/PH

    There is evidence of ongoing ocean acidification (meaning a drop in pH value): Between 1950 and 2020, the average pH of the ocean surface fell from approximately 8.15 to 8.05. [29] Carbon dioxide emissions from human activities are the primary cause of ocean acidification, with atmospheric carbon dioxide (CO 2) levels exceeding 410 ppm (in 2020).