why do fossil fuels generate more power than wood for us in machines,for example
a. fossil fuels have a higher concentration of carbon and hydrogen
b. fossil fuels are drier
c. fossil fuels are easier to light
d . fossil fuels are easier to transport
Answers
Answer:
Energy and the environment explained
Where greenhouse gases come from
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In the United States, most of the emissions of human-caused (anthropogenic) greenhouse gases (GHG) come primarily from burning fossil fuels—coal, natural gas, and petroleum—for energy use. Economic growth (with short-term fluctuations in growth rate) and weather patterns that affect heating and cooling needs are the main factors that drive the amount of energy consumed. Energy prices and government policies can also affect the sources or types of energy consumed.
Sources of GHG emissions estimates
The U.S. Environmental Protection Agency (EPA) publishes estimates for total U.S. greenhouse gas emissions to meet annual U.S. commitments under the United Nations Framework Convention on Climate Change (UNFCCC).1 The U.S. Energy Information Administration (EIA) publishes estimates for energy-related carbon-dioxide (CO2) emissions (emissions resulting from conversion of energy sources/fuels to energy) by fuel source and by fuel consuming sector by month and year.2
Carbon dioxide
In 2019, CO2 emissions accounted for about 80% of total U.S. anthropogenic GHG emissions (based on 100-year global warming potential). Fossil fuel combustion (burning) for energy accounted for 74% of total U.S. GHG emissions and for 92% of total U.S. anthropogenic CO2 emissions. CO2 emissions from other anthropogenic sources and activities were about 6% of total GHG emissions and 8% of total CO2 emissions.
Other greenhouse gases
The U.S. and international GHG emissions estimates include several other GHG that are emitted as a result of human activity:
Methane (CH4), which comes from landfills, coal mines, agriculture, and oil and natural gas operations
Nitrous oxide (N22O), which comes from using nitrogen fertilizers and certain industrial and waste management processes and burning fossil fuels
High global warming potential (GWP) gases, which are human-made industrial gases
Hydrofluorocarbons (HFCs)
Perfluorocarbons (PFCs)
Sulfur hexafluoride (SF6)
Nitrogen trifluoride (NF3)
The combined emissions of these other greenhouse gases accounted for about 26% of total U.S. anthropogenic GHG emissions in 2019
fossil fuels are drier because they are under ground