Milk (lowest acidity) < Coffee < Orange juice < Soda pops < vomit < Battery acid (highest acidity)
explanation :
pH values of all :
battery acid pH = 1.0
vomit pH = 2.0
soda pop pH = 2.5
orange juice pH = 3.5
coffee pH = 5.0
milik pH = 6.5
pH value is lesser acidity is more . high pH indicate lesser acidic nature
Radon is <span>not a source of air pollution related to human activities</span>
I believe it is A because the plant is offering protection while the bacteria is converting it in to nitrogen that the plant can use!
10 elements compose the bulk of rock forming minerals