LADY LIBRITY The statue of liberty is made of copper and over time has been oxidized by water and air, making it green instead of silver. What kind of weathering is this?”

erosion

physical weathering

deposition

chemical weathering

Mike and mitchell decide to have a foot race. they mark off a stretch of 100 yards, and recruit cindy to work the stopwatch. after running the race and looking at the results, cindy declared that mitchell was the fastest. so how did the boys times compare?

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a.the mitochondria b.the nucleus c.the vacuoles d.the endoplasmic reticulum