| 1. |
It's
difficult to walk around this swampy, prehistoric forest among the strange
trees, dense thickets, and large ferns. |
| 2. |
They
began to decay and new plants grew. |
| 3. |
Layers
upon layer built up over old roots. |
| 4. |
A
thick, brown, spongy layer of material called peat formed. |
| 5. |
Centuries
passed before the spongy peat became hard, black coal. |
| 6. |
I
can see that mining is hard work. |
| 7. |
The
retired miner tells us about the coal in Nova Scotia. |
| 8. |
He
blinds us with his little light. |
| 9. |
It
is a soft, sooty, black coal. |
| 10. |
The
coal gives good heat. |
| 11. |
Anthracite
is shiny, black coal. |
| 12. |
It
has a clean, low flame. |
| (View
answers) |