What makes a iron block difficult to lift than the cork block

What did the first language sound like

Which of the following are causes of coastal erosion? check all that apply. beach grasses and other plants trap windblown sand. wave action carves away the coastline. groundwater under pressure is forced to earth’s surface. artificial structures stop the natural flow of sand along the coast. underground caves collapse as bedrock is dissolved.

Advances in technology have enabled scientists and researchers to better study the evolutionary relationships between species