Question

The sources of radioactive pollution can be broadly classified into two types: (i) ___ and (ii) ___.

• A. i) Cosmic and ii) nuclear
• B. i) Natural and ii) anthropogenic
• C. i) gamma and ii) x-ray
• D. i) Radium and ii) UV

Answer 1

The correct option is B i) Natural and ii) anthropogenic

Broadly, there are two types of sources causing radioactive pollution, namely natural and anthropogenic radioactive sources. Natural sources include the cosmic rays and naturally occurring elements such as uranium, thorium, radium, isotopes of potassium and carbon. Anthropogenic sources include nuclear reactions and radiations employed for medical imaging like X-rays, CT scan and gamma rays.