1. in what korean capital city were mysterious changes recently observed on the upper floors of high-rises?

In a class of 20 students, what democratic form of governance makes the most sense

Which of these is a drawback of using natural gas? a. it is fairly safe for use in homes.b. it burns more cleanly than crude oil products.c. scientists have developed new ways of extracting it.d. during its extraction, groundwater can be contaminated.

Which describes the solid flying debris from a volcano