The minorities

2. - the diversity of life forms in an environment
3. - where the plates slide past one another
4. - the transportation of dissolved molecules through the soil via groundwater
6. - a group of spatially distinct populations that are connected by occasional movements of individuals between them
8. - an interaction between two species that increases the chances of survival or reproduction for both species
9. - the layer of the atmosphere above the troposphere, extending roughly 10 to 31 miles above the surface of Earth
14. - material outputs from a system that are not useful or consumed
15. - living on Earth in a way that allows humans to use its resources without depriving future generations of those resources
18. - derived from human activities
19. - a substance, either natural or synthetic, that kills or controls organisms that people consider pests
22. a vent in the surface of earth that emits ashes , gases, or molten lava
23. - where the tectonic plates move away from each other
24. an agricultural technique in which trees and vegetables are intercropped

1. - a layer of the atmosphere closest to the surface of Earth, extending up to about 10 miles
5. - where the tectonic plates collide
7. - the measure of the average kinetic energy of a
9. - a group of organisms that is distinct from other groups in its morphology (body form and structure), behavior, or biochemical properties
10. - a hypothesis that has been repeatedly tested by multiple groups of researchers and has reached wide acceptance
11. unwanted waste material created during mining
12. all land in a given landscape that drains into a particular stream, river, lake, or wetland
13. an area surrounding a metropolitan center with a comparatively low population density
16. - the conversion of ammonia into nitrite and then into nitrate
17. a device with blades that can be turned by water, wind, steam, or exhaust gas from combustion that turns a generator in an electricity-producing plant
20. the conversion of nitrate in a series of steps into the gases nitrous oxide and nitrogen gas, which is emitted into the atmosphere
21. - a method of harvesting trees that involves removing all or almost all of the trees within an area