The hot solid layer of the Earth made mostly of iron and nickel
What is the inner core
100
The construction of similar residential units over large areas.
What is tract development
100
Soil type that is the smallest and slowest to settle
What is clay
100
Breaking down of rocks by moss, acid rain deterioration, oxidation of soil materials by exposure to air
What is chemical weathering
100
Group of chemicals most useful in combating rodent pests.
What are rodenticides
200
Type of plates that push/move toward each other
What is converging boundaries
200
Results from the merging of cities due to growth in suburbs
What is a megalopolis
200
These are good components of soil.
What are minerals, air, water and organic matter
200
Results from topsoil erosion leading to permanent reduction in productivity (often in arid or semi-arid areas)
What is desertification
200
This develops as a result of overuse of pesticides
What is pesticides resistance
300
Type of boundaries that result in seafloor spreading
What are diverging boundaries
300
This phenomenon often results in increasing traffic congestion and commuting times, air pollution, inefficient energy consumption, and loss of open space.
What is urban sprawl
300
This type of soil contains 20% sand, 60% silt, and 20% clay
What is silt loam
300
Tilling a narrow strip of land where seeds will be planted.
What is strip tilling
300
Often engineered to be resistant to herbicides but could result weeds nearby also becoming resistant to herbicides in the process
What are GMOs
400
Type of boundaries that result in mountain and volcano formation.
What are converging boundaries
400
Factors such as expensive city living conditions, urban crime, cheap gas prices, desire for better schooling and cleaner open areas have contributed to this
What is urban sprawl (urban to suburban shift)
400
Decomposers are most likely found in these two soil horizons
What are the A and O horizons
400
Practice used to grow crops on steep hillsides
What is terrace farming
400
Use of various pest control measures such as public education, disruption of pest reproduction, use of natural pest predators, selective pesticide use, and modification to farming practices.
What is integrated pest management
500
Type of boundaries that result in earthquakes
What are tranform boundaries
500
Abandoned industrial cites that are converted to community gardens, low-income housing or other beneficial development projects in urban areas
What are brownfields
500
This horizon likely contains the fewest amount of living organisms
What is the C and R horizon
500
A method to reduce wind erosion that relies on planting strips of trees and shrubs along the edges of plowed fields.
What are wind breaks
500
Type of pesticides that dissipate quickly after application