Sulfer dioxide: a)creates a reddish-brown haze b)is a secondary air pollutant c)has an irritating odor and is colorless d)is realatively harmless to the environment

The african continent is home of the worlds largest desert and longest river . t or f

In the developed world, describe the changing role of women in agriculture.

Simple astronomical telescope the objective lens has a focal length of 75 cm and that of a piece of 5cm of the lenses are 18 cm apart when will be final image of a distant object before