What does this question mean?
'how efficient can this resource be compared to fossil fuels? '

What structure on the south african coast has a range of 63 km and releases flashes every 30 seconds?

What factors of japan’s geography make it necessary for it to import so many goods?

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 changes 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