Question

The acidity of normal rain water is due to

Answer 1

If options are like this... a) SO2 b) CO2 c) NO2 d) Cl2

Answer 2

Concentration of CO2 in present day atmosphere is
(A) ~ 220 ppm
(B) ~ 280 ppm
(C) ~ 360 ppm
(D) ~ 390 ppm

Answer 3

Which of the following is a correct
match ?
(A) Periyar – Kerala
(B) Ranthambore – M.P.
(C) Panna – U.P.
(D) Bandhvgarh – Bihar

Answer 4

i think its 36 ppm but can say 100% sure some also say about 400 ppm :)

Answer 5

If the standard deviation of a
population is 20 and the standard error
of mean is 4, then the sample size is
(A) 25
(B) 80
(C) 5
(D) 100

Answer 6

the first on e is carbonic Acid :)