Which Of The Following Are Fossil Fuels – Fossil fuels are complex mixtures of fossil remains of plants and animals left over millions of years ago. The production of fossil fuels – oil, gas or coal – from these fossils depends on the type of fossil fuel, heat and pressure.
Fuel is energy, and fossil fuels are no exception. Fossil fuel energy comes from the sun, which drives photosynthesis, which turns carbon dioxide and water into the molecular building blocks of ancient plants and animals. The bodies of plants and animals are mainly composed of carbon and hydrogen atoms, and the energy stored in fossil hydrocarbons is used as fuel when burned.
Which Of The Following Are Fossil Fuels
As fossil material is buried deeper into the earth, it is subjected to increasing heat and pressure. As the temperature rises, fossil molecules begin to break down. The first degradation produces partially altered materials such as peat from plants and kerogen from plankton. These transition materials can also be used as fuels, but they store less energy than fully formed coal, natural gas, or oil.
Fossil Fuel Plans Would Far Overshoot Climate Goals, Study Finds
After millions of years underground, the compounds that make up plankton and plants become fossil fuels. Plankton decomposes into natural gas and oil, and plants become coal. Today, these resources are extracted by mining coal and drilling oil and gas wells on land and at sea. They are in demand because they contain stored energy, and when burned, fossil fuels power machines and provide transportation, as well as the electricity needed for modern life. They also contain essential ingredients used in the chemical industry.
Crude oil is a mixture of thousands of different molecules, consisting of compounds containing mostly hydrogen and carbon. Each oil field has a unique composition and ratio of hydrocarbons. Based on this chemical composition, crude oil can have different densities: from thick and viscous to light and liquid. It is called sweet or sour, depending on how much sulfur remains, and can range from clear golden yellow to dark black.
For industrial and transportation use, crude oil must be separated into separate hydrocarbon fuels and lubricants. With so many types of molecules, there is no industry that does not use some form of petroleum products. Oil is used as lubricants, fuel, plastics, cosmetics and even medicine. In general, the components of oil are divided into four different types of molecules.
After all these transformations, oil naturally enters the environment. It’s usually deep below the surface, but it can also bubble up on beaches and even form balls of tar.
Solved Part A Fossil Fuel Consists Of Coal, Oil, And Natural
Oil spills release large amounts of oil into the environment. The Deepwater Horizon oil spill was the largest offshore oil spill in US history, spilling more than 3.17 million barrels of oil into the Gulf of Mexico. As a result of the fire and explosion on the drilling platform, 11 people died.
Researchers are heading out to sea to learn more about the oil’s impact on the surrounding marine environment and nearby Gulf communities. Since the 2010 spill, the Gulf of Mexico Research Program has funded hundreds of scientists and gained insight into the oil spill and its effects on the natural environment along the northern Gulf Coast. Check out some of the finds below. 1. Which of the following contains only fossil fuels? O A. Coal, oil, gas O B. Coal, geothermal, nuclear O C. Wood, oil, hydro D. Wind, gas, tidal O E. Solar, nuclear, oil shale Which? O A. Hydrogen sulfide O B. Propane O C. Nitrogen O D. Methane O E. Hydrogen 3. Oil and natural gas are mainly obtained from which of the following residues? A. Trees O B. Plankton O C. Grass O D. Marine mammals O E. Kelp 4. Temperature and pressure The optimum temperature and pressure for oil formation The “oil window” usually occurs at O O to a depth of 0.5 km E E B. 0.5-2 km C. 4-6 km D. 8-10 km E. More than 10 km 5. What are the most common source rocks for oil and gas? A. Porphyry igneous rock O B. High-grade metamorphic rock O C. Coarse-grained sedimentary rock O D. Vesicular volcanic rock O E. Fine-grained sedimentary rock … show more
6. Which of the following geological features is not a typical trap for oil and gas? A. Anticline B. False C. Caldera D. Pinching layers E. Salt dome OO©OO 7. Which of the following statements is false? A. Most metals are present in the Earth’s crust in moderate concentrations high enough for economic use. B. Many deposits occur because groundwater leaches metals from rocks and precipitates into much smaller rocks or water, resulting in high concentrations of metals. C. Some deposits are formed by direct crystallization of igneous bodies. D. Dense minerals can form deposits by accumulating in streams, while lighter minerals are washed away. E. In humid tropical environments, some sediments form insoluble residues that remain after the dissolution of other, more soluble minerals. 000 O© 8. Open mines are better than underground. A. It is a deposit in an arid environment B. A deposit that consists mainly of oxide minerals C. A deposit that mainly consists of sulfide minerals D. Shallow deposits E. Deep deposits OOO © O 9. Which of the following statements about non-metallic minerals is wrong? A. In general, the use of non-metallic mineral resources is less than the use of metallic resources. B. Limestone is an important component of cement. C. Evaporite provides gypsum for drywall, rock salt for seasoning food, and deicing roads. D. Quartz sand and sandstone are important components in glass production. E. Crushed stone is widely used for road construction. OOOO© 10. Which of the following statements about alternative (ie, non-fossil) energy sources is false? A. Wind, hydro and solar energy are renewable energy sources. B. The disadvantage of wind energy is noise pollution and danger to birds. C. Alternative energy sources now account for the majority of energy used worldwide. D. Ethanol is an important biofuel. E. Nuclear reactors usually produce energy by fissioning uranium. OOO©O … show more
11. Which statement about the level of groundwater is correct? 0 A. The water table represents the approximate boundary between the part of the soil where the pore space is completely filled with water (saturated) and the part of the soil where the pore space is only partially filled with water (unsaturated). OB. Groundwater roughly repeats the topography of the surface. O C. Groundwater may pass through the surface to form lakes or streams. 0 D. The height of the groundwater level changes due to changes in the amount of precipitation during the year. © E. All of the above 12. What term is used to describe a rock or sedimentary layer that has low permeability and prevents the movement of groundwater? O A. aquifer Q) B. aquitard O C. aquiclaustra O D. aquifragma O E. Aqueduct 13. Regarding groundwater overuse, it is 0 A. Groundwater overuse occurs when groundwater withdrawal exceeds natural rainfall recharge O B .Excessive use of groundwater leads to groundwater levels o C.Excessive use of groundwater causes subsidence due to reduced pore water pressure in rocks or sediments O D.Excessive use of groundwater can cause seawater to seep inland and displace freshwater groundwater © E .All of the above 14. Caves and karst landforms are most likely to be relatively easily dissolved by groundwater A. Basalt B. Sandstone C. Shale D. Limestone E. Granite 063000 15. Which statement about groundwater is false? (ie, aeration or seepage zones) may produce more groundwater than wells in saturated zones. D. Gravel usually has a higher porosity and permeability and produces more ground water. E. Groundwater flows, on average, more slowly than surface water. 00 (900 . . . show more
Lakhmir Singh Science Class 8 Solutions For Chapter 5 Coal And Petroleum
16. 17. 18. 19. Groundwater salinity generally increases with depth below the surface © A. Decreases 0 0 0 B. Decreases C. Remains constant D. Varies randomly. Is the attenuation statement incorrect? @0000 A. Head represents the energy per unit weight of groundwater. B. Hydraulic head:
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