Hazardous waste is liquid or solid that contains substances known to be

1.Fatal to humans or animals only at high dose

2.Toxic, carcinogenic or mutagenic to humans

3.Ignitable even at temperatures less than 60 degrees Celsius

4.Non-reactive

5.Corrosive

A1, 3 & 4 only

B2, 3 & 5 only ✓ Correct

C2, 3 & 4 only

D3, 4 & 5 only

Correct answer: (B) 2, 3 & 5 only

Explanation

Hazardous waste is defined by properties that endanger health or the environment.

Statement 2: material toxic, carcinogenic or mutagenic to humans is hazardous.

Statement 3: material ignitable below sixty degrees Celsius is hazardous.

Statement 5: corrosive material that eats into tissue or metal is hazardous.

Statement 1 and Statement 4: hazardous waste can be fatal at low doses and is often reactive, so those descriptions are wrong.

Such waste needs secure handling, treatment and engineered disposal.

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