Erosion can result in a vicious cycle of worsening erosion because
A) rainwater increasingly soaks into the ground.
B) the accumulation of humus makes erosion more likely.
C) plants are less likely to grow in an eroded region.
D) the pH of the soil increases as erosion continues.
Question 2
Consider a comparison of people living well in densely populated cities versus people living well in less dense suburbs. For the people living in the cities, it is
A) less expensive to provide social services and utilities but costs more to control crime and pollution.
B) less expensive to provide social services and control crime and pollution.
C) more expensive to provide social services and utilities and to control crime and pollution.
D) more expensive to provide social services and utilities but less to control crime and pollution.
The life cycle of the genus Pinus
Major reservoirs and flows of the hydrological cycle.
Bacteriophage T2- Reproduction Cycle
Menstrual cycle.
Erosion
Erosion along River Cutbanks Can Be Hazardous