Ongoing studies at Mount St. Helens have added to scientific knowledge about succession. Which two statements about succession are true? During succession, the biodiversity in an area often increases over time.

The earliest stages of succession usually have the highest biodiversity.

Only one species at a time will colonize an area.

Many species can colonize an area at the same time.

Chance does not play a part in determining when species colonize an area.

glacial erosion, the picking up and movement of earth beneath a glacier, is also referred to as plucking. erosion and transportation of individual pieces of bedrock, especially large "joint block occur as a result of this glacial erosion. plucking is type of erosion in which rocks become frozen into the bottom and sides of the glacier.as the glacier moves downhill it 'plucks' the rocks frozen into the glacier from the ground.

sorry, is there a picture? i do not see any arrows.

wut? unius0123 wut?