1. a barleycorn is an english unit of length equal to 1/3 of an inch. what is the height of the empire state building (449 m) expressed in barleycorn? (2.54 cm = 1 in)
a. 3 × 105 barleycorn b. 6 × 103 barleycorn c. 5 × 104 barleycorn d. 4 × 104 barleycorn e. 6 × 10–1 barleycorn

449 m = 44900 cm

if          2.54 cm = 1 in

then 44900 cm = X in

X = (44900×1)/2.54 = 17677 in  

if       1 barleycorn = 1/3 in

then Y barleycorn = 17677 in

Y = (17677×1)/(1/3) = 17677×3 = 53031 ≅ 5× barleycorns

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.

the earth would become to overheated and everything alive on it will eventually die from overheating. plants will eventually die as well, water will evaporate, and it will be nothing but a hot planet without anything living on it.