I have a pencil stuck on my foot

Anyways have some more free points :)

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.

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic

How does climate change affect producers?