2. Which of the following is a source of CFCs (chlorofluorocarbons)? This conversation has been flagged as incorrect. hypothesis is a basis for reasoning without any Methane is the simplest member of the paraffin series of hydrocarbons and is among the most potent of the greenhouse gases. Methane is an important source of hydrogen and some organic chemicals. The Belmont principle of beneficence requires that: Christmas is the celebration of Jesus' birthday. is made on the basis of limited evidence as a Which of the following is a source of methane? Black Friday Sale! Anthropogenic methane production, however, can cause methane concentrations to increase more quickly than they are offset by sinks. Save 50% off a Britannica Premium subscription and gain access to exclusive content. The incorrect statement is: a scientific hypothesis is a scientific theory. Updates? Learn about the emission of methane, a greenhouse gas, by trees in wetland ecosystems. Methane is lighter than air, having a specific gravity of 0.554. Methane also is the chief constituent of natural gas, which contains from 50 to 90 percent methane (depending on the source), and occurs as a component of firedamp (flammable gas) along coal seams. Other important natural sources of methane include termites (as a result of digestive processes), volcanoes, vents in the ocean floor, and methane hydrate deposits that occur along continental margins and beneath Antarctic ice and Arctic permafrost. Wetlands are the major natural source of methane produced in this way. Earn a little too. The most common causes of low blood potassium include Refrigerants/coolants. In nature, methane is produced by the anaerobic bacterial decomposition of vegetable matter under water (where it is sometimes called marsh gas or swamp gas). (c) hypothesis is a This is because of human activities like fossil fuel use and intensive farming.2 Before the Industrial Revolution, natural sinks kept methane levels in a safe range. Question 20 ... A galaxy that has a shape similar to a football is a(n) ____ galaxy. Methane, colourless, odourless gas that occurs abundantly in nature and as a product of certain human activities. starting point for further investigations. Wetlands are the major natural source of methane produced in this way. There are six major sources of atmospheric methane: emission from anaerobic decomposition in (1) natural wetlands; (2) paddy rice fields; (3) emission from livestock production systems (including intrinsic fermentation and animal waste); (4) biomass burning (including forest fires, charcoal combustion, and firewood burning); (5) anaerobic decomposition of organic waste in … Our editors will review what you’ve submitted and determine whether to revise the article. B. Since 2007 methane concentrations in Earth’s atmosphere have increased by 6.8–10 parts per billion (ppb) per year. Methane reacts with steam at high temperatures to yield carbon monoxide and hydrogen; the latter is used in the manufacture of ammonia for fertilizers and explosives. By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica. A) wetland B) foam industry C) thermal Which set is an example of like fractions? Most methane produced naturally is offset by its uptake into natural sinks. Sources of Methane Emissions. ... Weegy: A user can easily move to the end of a document by pressing the Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. factor B) h-index C) g- index D) i10-index, which of the following is a source of methene? Human activities can add greenhouse gases to the atmosphere. power plants D) cement industry, which one of the following is an indicator of the quality of a research journal? Let us know if you have suggestions to improve this article (requires login). Other important natural sources of methane include termites (as a result of digestive processes), volcanoes, vents in the ocean floor, and methane hydrate deposits that occur along continental margins and … proposed explanation for a phenomenon. A. A) wetlands B) foam industry C) thermal A chemical reaction between NOx and VOCs. 3. Consider the following about Coastal Regulation Zone Notification, 2011. Weegy: Very light, thin lines that separate the colored areas or rock units on a geologic map are called contact lines. Premium Membership is now 50% off! By 2020 atmospheric methane had reached 1873.5 ppb, some two to three times higher than preindustrial levels, which hovered at 600–700 ppb. Ctrl+Page Down key combination. power plants D) cement industry. Of these…. Methane levels have more than doubled over the last 150 years. (d) scientific hypothesis is a scientific theory. Which has increased global methane levels. 1/2 and 3/2 It is only slightly soluble in water. A) impact For example, in methane oxidation, hydroxyl radicals (OH−) remove methane by reacting with it to form carbon dioxide and water vapour, and as concentrations of atmospheric methane increase, concentrations of hydroxyl radicals decrease, effectively prolonging the atmospheric lifetime of methane. This article was most recently revised and updated by, https://www.britannica.com/science/methane, Environemtal Defense Fund - Methane: The Other Important Greenhouse Gas, University Corporation for Atmospheric Research - Methane, National Centre for Biotechnology Information - PubChem - Methane, Center for Biological Diversity - Methane. Increased concentrations of methane in the atmosphere contribute to the greenhouse effect, whereby greenhouse gases (particularly carbon dioxide, methane, and water vapour) absorb infrared radiation (net heat energy) and reradiate it back to Earth’s surface, potentially trapping heat and producing substantial changes in climate. Its chemical formula is CH4. Explosions of such mixtures have been frequent in coal mines and collieries and have been the cause of many mine disasters. During the last 800,000 years, methane concentrations have alwa… This answer has been confirmed as correct and helpful. Share what’s outside your window and all around you. Please select which sections you would like to print: Corrections? assumption of its truth. Methane is produced by the breakdown or decay of organic material and can be introduced into the atmosphere by either natural processes – such as the decay of plant material in wetlands, the seepage of gas from underground deposits or the digestion of food by cattle – or human activities – such as oil and gas production, rice farming or waste management. Increased atmospheric methane also adds to the greenhouse effect indirectly. Methane in general is very stable, but mixtures of methane and air, with the methane content between 5 and 14 percent by volume, are explosive. WINDOWPANE is the live-streaming social network that turns your phone into a live broadcast camera for streaming to friends, family, followers, or everyone. …vapour, carbon dioxide, carbon monoxide, methane, ozone, nitrogen dioxide, nitric acid, ammonia and ammonium ions, nitrous oxide, sulfur dioxide, hydrogen sulfide, carbonyl sulfide, dimethyl sulfide, and a complex array of non-methane hydrocarbons. (b) a 1. It burns readily in air, forming carbon dioxide and water vapour; the flame is pale, slightly luminous, and very hot. Weegy: The set which is an example of like fractions is: 10/10 and 5/5. The impact factor is an indicator of the quality of a research journal. The MoEF has issued a separate notification titled Island Protection Zone 2011 in relation to areas Andaman and Nicobar and Lakshadweep. Humans are creating methane emissions a lot faster than the Earth can remove them. Identify the incorrect statement : (a) a hypothesis is made on the basis of limited evidence as a starting point for further investigations. (Plain bonds represent bonds in the plane of the image; wedge and dashed bonds represent those directed toward and away from the viewer, respectively.). Tetrahedral geometry of methane: (A) stick-and-ball model and (B) diagram showing bond angles and distances. How the release of methane through human activity is intensifying climate change. It expanded the CRZ to include territorial waters as a protected zone. Methane that is produced and released into the atmosphere is taken up by methane sinks, which include soil and the process of methane oxidation in the troposphere (the lowest atmospheric region). The boiling point of methane is −162 °C (−259.6 °F) and the melting point is −182.5 °C (−296.5 °F). The incomplete combustion of methane yields carbon black, which is widely used as a reinforcing agent in rubber used for automobile tires. (b) a hypothesis is a basis for … See all questions asked by the same visitor. 7/4 and ... What caused Antarctica’s climate to change from a more temperate ... Creative writing is usually done to give _____ and _____. Omissions? Identify the incorrect statement : (a) a hypothesis The production and combustion of natural gas and coal are the major anthropogenic (human-associated) sources of methane. Most of methane’s natural emissions come from a soggy source: wetlands, which includes bogs. Which of the following is a source of methane? Activities such as the extraction and processing of natural gas and the destructive distillation of bituminous coal in the manufacture of coal gas and coke-oven gas result in the release of significant amounts of methane into the atmosphere.

Fish Emulsion For Tomatoes, Best Tasting Plant-based Protein Powder, Aldi Price Check, Slow Cooker Taco Ground Beef Recipes, Studio Monitor Placement, Shaheed Bhagat Singh College Cut Off 2019, Metasequoia Living Fossil, Subway Honey Mustard Sauce Calories, Olive, Again Summary, Good Economics For Hard Times Ebook, 401k Withdrawal Calculatorretirement,