The cause of soil pollution is:
Ozone Acid rain Air freshener None of these
Ozone Acid rain Air freshener None of these
Stars Moon Planet All of these
George Lemaitre Edwin Hubble Mayim Bialik None of these
Displacement Weight Inertia None of these
12 pairs 24 pairs 31 pairs 33 pairs
Agronomy Botany Entoology Zoology
Antigens Antibody Antitoxin None of these
3 2 4 6