1.provide examples of the impact humans have had on earth 2.identify actions that humans can take to decrease or reverse their negative impact on earth 3.explain the cause and effect relationships of deforestation, desertification, and urbanization 4.evaluate the impact of human activities on air and water quality 5.analyze human impact on earth as a local effect versus a global effect

Some gamma ray bursts are hypothesized to come from mergers of neutron stars or black holes. if this hypothesis is correct, what else should we in principle be able to detect from such mergers? a. gravitiational waves b. x-ray bursts c. significant disruption of gas thousands of light-years away in the surrounding galaxy d. an "afterglow" of bright visible light, lasting for weeks

To solve this system of equations by elimination, what operation could be used to eliminate the y-variable and find the value of x? 6x + 5y = 2 4x + 2y = 8 a) subtract 2 times the second equation from 3 times the first equation b) subtract 3 times the second equation from 2 times the first equation c) subtract 5 times the second equation from 2 times the first equation d) subtract 2 times the second equation from 5 times the first equation

Why do farmers in different regions use different farming techniques