20. which of the following types of ground is subject to long-term settlement problems and should therefore be avoided for construction work? backfill over opencast mining sites; ground above longwall mining river terrace gravels; ground more than 30 metres above pillar and stall mining.

The “twelve apostles” are in which national park?

[bws.05]where would uncharged particles be most likely found in an atom? o on the electrons o inside the protons o inside the nucleus outside the nucleus

If we review the changes in the landscape surrounding the great salt lake in utah we can see a change in topography. look at the area to the south of the lake. what change has occurred during the last twenty-nine years? a) erosion of the hills b) an increase in marshland c) flooding of the area and the development of wetlands d) deposition of sediments and an increase in elevation