Secondary air pollution is _____________________?

Related Mcqs:

Which rock is harder_________________?

A. Metamorphic B. Sedimentary C. Igneous D. Sand stone...

Who gave the equation for study of soil property ?

A. Ziebig B. Newton C. Neil D. Jenny...

Rocks which are formed by disintegration of pre-existing rocks by weathering are____________________?

A. Sand stone B. Classics C. Igneous D. Greis...

The earth core is made of the following metals ______________________?

A. Fe & Ni B. Mg & Ni C. Cu & Ni D. None of these...

Accumulation of soluble salts root zone is known as____________________?

A. Desodication B. Sodication C. Degradation D. Salininzation...