The correct answer is economic because economic is money oriented
Probably minerals because they are definitely in soil
1. Permafrost
2. Doldrums
3. Tree line
4. Jungle
5. Steppe
6. Australia
7. Gobi
8. Mediterranean climate
<span>The density of a gas may be defined as the mass of 1 dm3
of the gas measured at s.t.p.
The following mixture of gases has the greatest density:
D Uranus H2 82.5, He 15.2, CH4 2.3</span>