Silicate minerals are subdivided into six groups based on the way silica tetrahedra are

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

Select the star life cycle that is accurate

Using examples from various part of the world. examine the assertion that mere presence of abundant natural resources in a country does not guarantee rapid socio economic development