Petroleum, consisting of crude oil(原油) and natural gas, seems to originate from organic matter in marine sediment(海洋沉淀物).Tiny organisms settle to the seafloor and gather in marine mud. The organic matter may partially break down, using up the dissolved oxygen in the sediment. As soon ...
Petroleum, consisting of crude oil(原油) and natural gas, seems to originate from organic matter in marine sediment(海洋沉淀物).Tiny organisms settle to the seafloor and gather in marine mud. The organic matter may partially break down, using up the dissolved oxygen in the sediment. As soon ...
根据第一段Coal, oil, and natural gas produce carbon dioxide, which warms the earth when burned,Hydrogen produces pure water.煤、石油和天然气产生二氧化碳,燃烧时会使地球变暖,而氢产生纯水。可知,作为燃料,氢比石油具有的优点是它不太可能加剧全球变暖,故选B。 (2) 段落大意题。根据第二段While in ...
Methane (甲烷) is the main component of natural gas and among the greenhouse gases heating the planet, which is produced when extracting crude oil. Specific measurements varied from a low of less than 1%, or about what the Environmental Protection Agency estimates, at a site in Pennsylvania to...
Oil and natural gas Oil and gas will continue to play a crucial role in the energy system for several decades to come, with demand decreasing gradually over time. To maintain the secure supply of energy on which society relies, it is vital that the world does not dismantle the current ...
Petroleum, consisting of crude oil(原油) and natural gas, seems to originate from organic matter in marine sediment(海洋沉淀物).Tiny organisms settle to the seafloor and gather in marine mud. The organic matter may partially break down, using up the dissolved oxygen in the sediment. As soon ...
Global energy policies: Government priorities to come into play 1. The Permian Basin: Repositioning for growth The Permian basin is synonymous with US oil and gas production, contributing to 46% of US crude oil production, 20% of US gross natural gas production, 51% of rig count activity, ...
Experts believe there are huge amounts of gas and oil in the Arctic. For some years, industries have looked at the ongoing Arctic ice melting as a source of possible profits from those natural resources. But researchers say methane (甲烷) gas will escape in amounts not seen before as the...
Whatelsedoweknowaboutoilandgas?Oilinit’snaturalstatecanbethick orthin,blackorlightcolored.Whenoilisrefined,many productscanbeobtained:•Energyforpower•Gasolineforcars•Dieselfuelfortrucksandtrains•Hi-octanefuelsforplanes•Heatingoilforhouses Manyothermaterialsalsocome frompetroleum:•Plastics•...
quarter of the world’s oil and almost one-fifth of the world’s natural gas come from offshore, even though offshore drilling is six to seven times more expensive than drilling on land.A significant part of this oil and gas comes from under the North Sea between Great Britain and ...