At what approximate altitude in the atmosphere can stratospheric ozone be found?
a) 10 km
b) 30 km
c) 70 km
d) 100 km

Hurry! according to the map above, there are major types of natural resources in india. a. 4 b.5 c.10 d.16

How did the government of egypt change the natural state of the nile river?

The us labor movement began in the a. 1930s b. 1920s c. 1880s d. 1860s select the best answer from the choices provided. a b c d