A because they tell by their texture.
A stack or sea stack is a geological landform consisting of a steep and often vertical column or columns of rock in the sea near a coast, formed by wave erosion.<span>[</span>
Energy production/acid rain<span>, nuclear power/waste, </span>air pollution<span>/climate, heavy metals, pesticides, water </span>pollution<span>, solid waste, and unforeseen accidents.</span>
The Yucatan Channel separates<span> it from the </span>Caribbean Sea<span>.</span>
Its located in <span>Vietnam</span>