Over the years, scientific advancements have brought both benefits and disadvantages to society. Which of the following is an area which has been both positively and negatively affected by scientific advancements?
a. food safety
b. waste production
c. climate
d. all of the above

Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. the following chemical equation shows the combustion of ethane. balance the equation by filling in the coefficients. c2h6 + o2 → co2 + h2o

All eukaryotic cells contain small bodies called

Land conservation is a worldwide priority. there are several methods to prevent the loss of land due to a variety of reasons. which method is not a way to conserve land? a) sea walls b) rainwater harvesting c) limits on clear cuts of forests d) cut and burn methods of clearing land