Rapidly growing countries, with high number of children, have a population profile that _____. This system of dams and reservoirs on the _____ provide water and electricity from hydroelectric plants at the major dams for approximately one of every eight people in the U.S. and is used to produce about 15% of the nation's crops and livestock. It is also the largest producer of greenhouse gases in Canada which contains the most this energy. What resource is used to generate about 40% of the electricity generated in the United States in 2013? Every month, over 50 million students, teachers and everyday people use Quizlet to study any subject imaginable for school, work or as part of their personal interests -- including 2 in 3 high school students and 1 in 2 college students in the US. From the late 1800’s until today, fossil fuels—coal, petroleum, and natural gas—have been the major sources of energy. What proportion of food products sold on U.S. supermarket shelves contains some from of genetically engineered crop? Was created admit the threat of mass starvation due to rapid population growth. Most of the production increases since 2005 are the result of horizontal drilling and hydraulic fracturing techniques, notably in shale, sandstone, carbonate, and other tight geologic formations. (T/F) Since 1942, the use of synthetic pesticides has increased 10-fold, yet food supply damage due to pests has increased during that time. Electricity is generated at power plants and moves through a complex system, sometimes called the grid, of electricity substations, transformers, and power lines that connect electricity producers and consumers. "I'm excited to help drive Quizlet's impact, expand Quizlet's user base and build a brand that learners love.". The global population of ______ is projected to triple between 2013 and 2050. (T/F) A Declining population can threaten the government's ability ti fund pensions and health-care costs for retirees. Only a small portion of that energy hits the Earth, but it is enough to light our days, heat our air and land, and create weather systems over the oceans. 1. "With more than a billion study transactions happening on Quizlet each week, the company has a massive reach and opportunity," said Brayton. Horizontal drilling and hydraulic fracturing. Most of that comes from biomass and hydroelectric sources. Sarah, Federal DOE/EIA MER Table 2.1 Energy Consumption by Sector data does not support most of your claims. Copyleft is a distinguishing feature of some free software licenses, while other free-software licenses are not copyleft licenses because they do not require the licensee to distribute derivative works under the same license. They have about 72% of the world's proven crude oil reserves and thus are likely to control most of the world's conventional oil supplies for many years to come. Freshwater that is used indirectly is called _____, which is the freshwater that is not directly consumed but is used to produce food and other products. Then add the results together. In the United States, the entire electricity grid consists of hundreds of thousands of miles of high-voltage power lines … (T/F) Family Planning, economic opportunities and social rights for women and schooling for girls generally produces a higher birth rate. Regularly suffer form lack of protein and other key nutrients. The population of _____ is projected to drop 24% by 2050. End-use energy consumption includes primary energy consumption and retail electricity sales. (T/F) Early and modern agriculture has been a major factor in the rapid rise of the human population. Where does our energy come from? Hydropower and wood were the most used renewable energy resources until the 1990s. Renewable energy currently accounts for about 8.20% of the United States energy consumption. (T/F) The Unites States admits fewer immigrants than most other industrialized nations. For more information, please visit www.quizlet.com. Generally, a high infant mortality rate is usually associated with _____. Most local grids are interconnected for reliability and commercial purposes, forming larger, more dependable networks that enhance the coordination and planning of electricity supply. Wind farms need backup storage system when the wind dies down. muddy water from eroded sediment such as soil or silt. Biomass is renewable organic material that comes from plants and animals. it is essentially a one-time deposit of liquid natural capital with a very slow rate of recharge. Most commercial energy sold at a marketplace comes from extracting nonrenewable resources.82% of commercial energy comes from nonrenewable resources-76% from fossil fuels and 6% from nuclear power. "There's never been a more important time to be empowering students, and I'm excited to join and help continue the rapid growth and global expansion of Quizlet's online learning platform.". What would likely be found on an organic farm? In 2016, most of the net energy … Geothermal energy comes from the heat within the earth. On average that works out to 74 million BTUs per person. What are the countries with the largest reserves of natural gas? (That’s the most recent full year for which data is available.) Without sufficient quantities of micronutrients _____, goiters may develop. 1 This was equal to 28% of total U.S. end-use energy consumption in 2019. The majority of oil pollution of the ocean comes from _____. Heating and cooling our homes, lighting office buildings, driving cars and moving freight, and manufacturing the products we rely on in our daily lives are all functions that require energy. (T/F) The United States has enough wind potential to meet an estimated 16 to 22 times its current electricity needs. (T/F) Over time, the extensive addition of water through irrigation practices can actually lead to desertification. (T/F) A spent fuel rod is one that has lost all of its radioactivity during energy production in the reactor. (T/F) Secular fission is a process where the nuclei of two isotopes of a light element are forced together at an extremely high temperature until they fuse to form a heavier nucleus with a release of energy that can be used to produce commercial energy. ‎Quizlet is the easiest way to study, practice and master what you’re learning. Coal and natural gas were the most used energy fuels for generating electricity. The prices soon hybrid, plug-in hybrid, and all-electric cars are high because of the high cost of their _____. plant nutrients from industry, farms, and households. Energy around Us An old song says, "Love makes the world go 'round." Whilst we continue to add more renewables, the majority of the world’s energy still comes from fossil fuels. The most common energy sources on the planet in modern times are those which use fossil fuels to generate their energy. The electric power sector consumes primary energy to generate most of the electricity consumed by the other four sectors." Until the mid-1800s, wood was the source of nearly all of the nation's energy needs for heating, cooking, and lighting. What what is by far the leading cause of water pollution? What type of irrigation commonly used in developing nations loses 45% of the water applied? Education and employment opportunities available for women affect population growth because _____. Approximately two out of three people in the world primarily survive on which three foods? Since 1995 the amount of energy produced by renewable sources has increased by 15.9%. [citation needed] This figure is about 18% smaller than the generated electricity, due to grid losses, storage losses, and … What is the type of agriculture most likely to be found in developed countries? Total fertility rates tend to be low when women have access to education and paid employment outside the home. We divide our energy use among four economic sectors: residential, commercial, transportation, and industrial. unlined landfills, household chemicals, mining refuse and industrial discharges. Energy comes in two types: renewable and non-renewable. In total, America accounts for 18% of the world’s energy consumption. Most os the harmful environmental and health costs of coal are not included int the market price. is complex and takes more time compared to pesticides. Which fertilizer type is relied upon most in more-developed countries? (T/F) A well-designed geothermal heat pump system could be the most energy-efficient, reliable, environmentally clean, and cost-effective way to heat or cool a space. The commercial sector [18% of all energy consumption, including electricity] includes offices, malls, stores, schools, hospitals, hotels, warehouses, restaurants, and places of worship and public assembly. and Intuit where she handled some of the highest profile M&A and IPO filings in the tech sector. She is currently a member of the Board of Directors of Vidyard and Relativity, and is an active angel investor. Why is Organization of Petroleum Exporting Countries (OPEC) so important? What is an example of nonpoint source pollution? One reason birth and fertility rates in more-developed countries tend to be lower is that _____. Areas on the outskirts of cities where people build shacks from corrugated metal, plastic sheets, scrap wood, and other scavenged building materials are called _____. What is a way to restore land that has undergone desertification? Biomass—renewable energy from plants and animals. Most scientists and engineers agree in principle that deep burial in an underground repository is the safest and cheapest way to store _____ for thousands of years. What kind of cropping is where one or more crops, usually legumes or other crops that add nitrogen to the soil, are planted together and between orchard trees or fruit-bearing shrubs, which provide shade? (T/F) A food desert is an area in the countryside where desertification is a major problem. How are spent nuclear fuel rods stored immediately after they are removed from the reactor? The leading renewable energy resource that is used to produce electricity in the world today is _____. It is the solid organic matter found in petroleum. (T/F) Malnourished individuals may become more prone to infections and disease. Quizlet's first CMO, Brad Ramsey, officially began his role in March and comes from Twitter, where he was vice president of global marketing. The word "geothermal" comes from the Greek words geo, meaning earth," and therme, meaning "heat. It radiates more energy each day than the world uses in one year. What can take decades to thousands of years to cleanse itself of slowly degradable wastes? SAN FRANCISCO, Aug. 6, 2020 /PRNewswire/ -- Quizlet, the global learning platform known for its AI-powered study tools, today announced it has appointed Shannon Brayton to its Board of Directors and has appointed a Chief Marketing Officer, Brad Ramsey. Combining cognitive science and machine learning, Quizlet guides students through adaptive study activities to confidently reach their learning goals. Ramsey brings over 20 years of marketing expertise that aligns well with Quizlet's global expansion plans, having driven growth and brand awareness, both domestically and internationally, for many of the world's largest internet brands. Natural gas is produced from onshore and offshore natural gas and oil wells and from coal beds. Trace amounts of sex attractants, otherwise known as _____, can be used to lure pests into traps or to attract their natural predators into crop fields. A small pellet of uranium dioxide is about the size of an eraser one a pencil and contains the energy equivalent to a _____. The average American, however, consumed roughly 297 million BTUs of energy per person, nearly five times more than the average. Which city in the United States has used strong land-use policies to control its growth and reduce its dependence on automobiles, and has the nation's highest percentage of bicycle commuters as a result? (T/F) LED bulbs use 85% less energy and last up to 25 times as long as incandescent bulbs. For example, 1 slice of bread with a tablespoon of peanut butter on it contains 16 grams carbohydrate, 7 grams protein, and 9 grams fat : Our energy supply comes mainly from fossil fuels, with nuclear power and renewable sources rounding out the mix. A growing source of heavy oil is _____, which is a mixture of clay, sand, water, and a combustible organic material called bitumen. What class of pollutant can cause excessive growth of algae? Renewable Energy Sources. Waste is converted to a soil-like humus that can be used as fertilizer. (T/F) Japan became the world's second largest importer of coal as a result of the Fukushima Daiichi secular power plant accident. There is an ongoing debate as to which class of license provides the greater degree of freedom. According tho the U.S. National Academy of Sciences, a well-designed _____ can reduce synthetic pesticides use and pest control costs by 50-65%, without reducing crop yields and food quality. Carbon is the main element in fossil fuels. Coal and gas account for about 79% of electricity generation. The drop in commercial construction was felt most strongly in office, lodging, and warehouse The average number of children born to women in a population during their reproductive years is the ____. To calculate the energy available from a food, multiply the number of grams of carbohydrate, protein, and fat by 4,4, and 9, respectively. Tasmanian energy taskforce. saltwater can be pulled into freshwater aquifers. The Sun radiates huge amounts of energy. They were wrong. From 2011 to 2016, Vermont focused on increasing its commercial-scale solar photovoltaic capacity, according to the U.S. Energy Information Administration. Learn More: What is a BTU? Energy in the United States comes mostly from fossil fuels: in 2010, data showed that 25% of the nation's energy originates from petroleum, 22% from coal, and 22% from natural gas. Why did Saudi Arabia announce in 2008 that it would stop producing grain? Since three-quarters of global greenhouse gases come from energy – the burning of coal, oil and gas – we need to rapidly transition away from them to low-carbon sources. What is the most efficient form of irrigation, What in Brazil has reduced household water bills by 40%. Some analysts consider the United States to be the world's most overpopulated country because _____. Most non-renewable energy sources are fossil fuels: coal, petroleum, and natural gas. More than 50 million students study for free with the Quizlet app each month! (T/F) Birth and death rates generally decline as countries develop economically. What is the root cause of food insecurity? 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