Weathering is:
a)when the weather changes
b)is the breakdown of rocks by a chemical, physical or biological process
c)when materials are moved by wind and water
d) when soil and rocks are worn away and moved to a new location by wind or water

regents of the university of california v. bakke, 438 u.s. 265 (1978), was a landmark decision by the supreme court of the united states. it upheld affirmative action, allowing race to be one of several factors in college admission policy.

the answer is lactic acid from anaerobic respiration. the acid in lactic acid is what creates sore and burning muscles. if you think about how acid burns that will give you a clue for questions like this.