Which of the following are the characteristics of ldcs?
gender inequalities, high birth rate, low birth rate, uneven distribution of wealth, lack of technology, low population density.
(p. s. it's multiple answers)

The difference(s) between the grand canyon and valles marineris is/are: (a) the grand canyon was formed by water, but valles marineris was not. (a) valles marineris is much longer than the grand canyon. (c) valles marineris is much wider than the grand canyon. (d) valles marineris has large volcanoes near it. all of the above

The impact of a large asteroid comet with earth has been proposed to have caused the extinction of the dinosaurs. the impact site of this comet is in or near

Distance that lewis and clark traveled from st. louis to ft. clatsop near the pacific ocean.