Natural gas _______.

Question

BlackTom AI · Accepted Answer

Option 1: 'is expected to be depleted by 2025' — This claim is not accurate. While natural gas is a finite fossil fuel and reserves can be depleted over long timescales, predicting depletion by a specific year like 2025 is not supported by current, broadly accepted energy-resource assessments. Therefore this statement is misleading or incorrect.
Option 2: 'is composed mostly of octane' — Natural gas is not composed of octane. Octane is a hydrocarbon (C8H18) associated with gasoline, which comes from crude oil. The primary constituent of natural gas is methane (CH4), with smaller amounts of other light hydrocarbons. This option confuses natural gas with gasoline or other petroleum products.
Option 3: 'is transported mostly by truck' — The common method of delivering natural gas to consumers is through a network of pipelines, not primarily by truck. Trucks may transport compressed or liquefied natural gas in certain contexts, but the standard, bulk transport and distribution is via pipeline systems. This statement overgeneralizes the logistics of natural gas delivery and is not accurate for the typical mode of transport.
Option 4: 'was discovered by Bunsen in 1885' — This is historically inaccurate. Bunsen is known for the Bunsen burner and for early spectroscopy work; natural gas as a resource was known and used long before 1885, and its discovery cannot be attributed to Bunsen in that year. This option mismatches historical context and misattributes discovery.
Option 5: 'produces less carbon dioxide when burned per energy produced than coal or oil' — This statement reflects a key environmental characteristic of natural gas. When burned for the same energy output, natural gas generally emits less CO2 and fewer pollutants than coal or oil due to its higher hydrogen-to-carbon ratio and cleaner combustion profile. This aligns with widely cited comparisons of greenhouse gas intensity among fossil fuels, making it the most accurate assertion among the options.

Natural gas _______.单项选择题

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