Sperm are produced in the scrotumseminiferous tubulesepididymisvas deferens

seminiferous tubules

Explanation:

The sperms are the male gametes. The sperms are unicellular structures each having only one flagella. These cells cannot divide and exhibit limited life span. They are motile due to the presence of flagella in them. These are produced in the seminiferous tubules of the testes. These are tiny coiled tube structures, which produce millions of sperm cells. The primary function of the  sperm cell is to facilitate the fertilization of the female egg cell.

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.