A main advantage to organisms that reproduce sexually is:

i do not know and i have a 100 in this class

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.

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.

the correct answer is 2 and 4