Coal, oil and natural gas are non-renewable resources, which were formed from the r emains of plants and tiny sea creatures which lived many millions of years ago. 相关知识点: 试题来源: 解析 答案:remains.考查首字母填空.句意:煤、石油和天然气是不可再生资源,是由数百万年前的植物和微小...
Petroleum, or crude oil, and natural gas are organic hydrocarbons formed from atoms of carbon and hydrogen. The part of these resources that remains will probably be reserved for applications in the production of industrial chemicals and pharmaceuticals and some liquid fuels. The questions of how ...
【题目】Coal, oil and natural gas are non-re newable resources , which were formed from t he r__ of plants and tiny sea creatures whic h lived many millions of years ago . 相关知识点: 试题来源: 解析 【解析】 答案 :remains.考查首字母填空.句意:煤、 石油和天然气是不可再生资源,是由...
A . Microscopic organisms that live in mud produce crude oil and natural gas.B . Large amounts of oxygen are needed for petroleum formation to begin.C . Petroleum is formed when organic material in sediments combines with decaying organisms.D . Petroleum formation appears to begin in marine ...
适应性训练(94)Natural gas is a fossil fuel. Like other fossil fuels such as coal and oil, natural gas formsfrom the plants, animals and microorganisms(1)lived millions of years ago.There are several different theories to explain (2)fossil fuels are formed. Asplants, animals and microorganisms...
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 as ...
P1: Petroleum, consisting of crude oil and natural gas, seems to originate from organic matter in marine sediment. Microscopic organisms settle to the seafloor and accumulate in marine mud. The organic matter may partially decompose, using up the dissolved oxygen in the sediment. As soon as the...
aFossil fuels are energy sources formed from the remains of plants and animals that lived millions of years ago.Coal,oil,and natural gas are all fossil fuels.People in the United States and other countries started bunting large amounts of fossil fuels more than a century ago.The amount d fo...
During this conversion, organic compounds are transformed to oil and natural gas. [#paragraph2][#insert1]Sampling on the continental shelves and along the base of the continental slopes has shown that fine muds beneath the seafloor contain up to 8 percent organic matter. [#insert2] Two ...
Fossil fuels are sources of energy in the form of coal,oil,and natural gas. These fuels are called fossil fuels because they are formed over millions of years from the fossils,or remains,of dead plants and animals. Eventually the fossils are buried under ...