Question

Write down points without fully expanding verbs, numbering them as you do.

Answer 1

1) Energy stored in coal, petroleum came from sun
2) bulk of present-day supplies – laid down some 200-600 million years ago
3) coastal seas teemed with microscopic forms of life in tropical conditions – these organisms died – tissues recycled through scavenging and decay
4) dead plants and animals covered with mud, prevented from total decomposition
5) layers of sediments- weight accumulation – sediments turned into rocks – pressure built – formation of coal and petroleum preserved under pressure
6) today, conditions unsuitable for coal – production not in significant quantities