| Across: |
| 4 |
An important liquid fossil fuel. (3) |
| 5 |
This is happening to glaciers and arctic ice more with global warming. (4) |
| 7 |
This sort of 'converter' changes carbon monoxide and nitrogen oxide into less harmful gases in a car exhaust (9) |
| 9 |
Another phrase for the 'greenhouse effect' (6,7) |
| 10 |
This can happen to those pretty colours on fabrics with too much sunlight, though modern dyes are usually more resistant. (4) |
| 12 |
These don't like low pH rain running into rivers! (4) |
| 13 |
Sums up the effects of too much traffic and power station emissions (3,9) |
| 15 |
The state of metal objects, especially when dug up by archaeologists! (8) |
| 16 |
What we need to do with soil that's to acid for good crop growth! but not the z variety! (10) |
| 18 |
What would we do without this plant factory process doing this in daylight! (14) |
| 20 |
The condition of most stone after a long time. (9) |
| 23 |
Most plants need this base to live on. (4) |
| 24 |
In the upper atmoshere, this absorbs and protects us from harmful ultaviolet radiation (5,5) |
| 25 |
The warming up effect for growing plants or environmental disaster! (10) |
| 26 |
Nice to lie on in the sun, but a tanker spillage ruins it for quite a while! (5) |
| 27 |
Useful structural materials but they so corrode without protection! (6) |
| 28 |
Vital for life, requires purification treatment before domestic use. (5) |
The
smaller easier KS3 crossword on "ENVIRONMENTAL CHEMISTRY"