and petroleum were produced and preserved under pressure. Coal was formed mostly of giant fern-like plants that have only small counterparts today. Coal may still be forming here and there on earth, but conditions are not right for the production of significant quantities. .
Underline the important words and phrases. . Write down points without fully expanded verbs, numbering them as you do. .
Combine related points. . Group related points. .
Change the verbs to nouns and begin points with them. . Number the points. After you have finished check with the notes given below.
Storage of energy from sun in coal and petroleum Deposit of bulk of supplies – million years ago Teeming life in tropical conditions Death of life forms, leading to recycling through decay Prevention of total decomposition by considerable dead plants, animals being covered with mud Solidification of sediment leading to rock-formation over time Production of coal, petroleum by compression of organic matter between rocks Unsuitability of present-day conditions for coal-formation