The vocabulary words are// Elements, Periodic table, Periods, Groups and atomic numbers. I need help matching the vocabulary words.

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.

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell

The dense layer of connective tissue that surrounds an entire skeletal muscle is the