Soils are also contaminated by a number of inorganic compounds which are also high toxic to human & other animals & are extremely poisonous may include:

A. Arsenic & Cadmium

B. Mercury & chromium

C. Calcium & Magnesium

D. Both A & B
Be the first to comment if anything wrong with this mcq
Your comment successfully submitted!
It will automatically posted after review and approval by our staff member.