Please help if you can, i put up another question but failed to attach BOTH images to help out a bit. Images are linked down below :)

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.

What percentage of light hits earth's surface directly?

Which enzymes break down carbohydrates?