Will givething what is the best solution to the problem of increasing acid deposition? a. clean coal technology b. encouraging citizens to use their cars less c. alternative bio-fuel development d. a combination of approaches including all of the above

What is the speed of sound in water

Does anyone know the answers for these

What evidence does the writer give to support his argument about coral reefs? a) he speaks of the activities of coral polyps. b) he describes the composition of the great barrier reef. c) he emphasizes the ways in which coral reefs are fragile. d) he points out the ways that scientists do research on the reefs.