are found along the zigzag line on the periodic table. The only exception is Aluminum. It is considered to be a metal even though it lies along the zigzag.
Answer:
Three examples of fossil fuels are:
1). Petroleum
2). Coal
3). Natural gas
During that process light energy becomes food for plants
The definitions of "sector 3" and "stratum D", the layout of the sectors,
and the behavior of the strata would go a long way toward explaining
that mysterious absence.