Why is stratospheric ozone important to humans?
What will be an ideal response?
Stratosphere ozone is important to living organisms because it absorbs many of the Sun's harmful ultraviolet rays. Ultraviolet radiation causes skin cancer and other health problems in humans.
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Based on the evidence to date, there is not yet a global culture
Indicate whether this statement is true or false.
While following an Ekman spiral, ocean currents will have turned about this many degrees upon reaching a depth of approximately 100 meters: ________
What will be an ideal response?
Most scientists and engineers agree in principle that ____ is the safest and cheapest way to store high-level radioactive wastes for thousands of years.
A. dropping barrels to the seafloor B. launching containers into space C. burying waste deep in an underground repository D. storing waste in specially constructed buildings E. storing waste in pools inside nuclear plants
Researchers in Switzerland and Pennsylvania have demonstrated that organic farming ________
A) suppresses the biodiversity of pollinating insects, especially bees B) increases the incidence of invasive species C) is only sustainable with pesticides and synthetic fertilizers D) presently has no market in Europe E) decreased organic soil losses while giving yields almost as high as conventional farming