Your friend Angela tells you about a field trip that she went on and learned about mining. She and her classmates had the opportunity to harvest minerals from a local river. They used pans to scoop the materials from the water and washed and shook the pans to separate the minerals from rocks and other debris. Unfortunately, she and her classmates were not allowed to keep souvenirs. What type of mining did Angela and her classmates participate in? (1 point)
Responses
drilling rocks
drilling rocks
underground mining
underground mining
surface mining
surface mining
placer mining
placer mining