a man lives on the 100th floor of an apartment building. On rainy days he rides the elevator all the way up. However, on sunny days, he goes half way and takes the stairs the rest of the way. Why?

Not all tiles will be usedidentify the element present in each star based on the gaps observed in wavelengths of its light refer to this table containing absorption wavelengths (in nm) of several different elements the table ishelium 447, 502 ,587 ,668carbon 427 ,515, 600 ,678sulfur 425, 565, 639, 675xenon 484, 590, 687calcium 429 ,527, 593, 645silver 421 ,521, 662

The density of a liquid could be found by using

Rohit is trying to tune an instrument