Question

There is a fear that certain nanoplastics would become a part of human food, thereby causing severe harm to the human body. What is the size of one nanometre ?

• A. $10^{–9}\ m$
• B. $10^{–6}\ m$
• C. $10^{–12}\ m$
• D. $10^{–3}\ m$

Answer 1

Answer: (A)

$10^{–9}\ m$

Answer 2

The correct option is (A): $10^{–9}\ m$.