Question

The prefix $10^{18}$ is

• A. giga
• B. kilo
• C. exa
• D. nano

Answer 1

Answer: (C)

exa

Answer 2

The prefix $10^{18}$ is Exa. Its symbol is $E$.
Giga $(G)$ represents $10^{9}$.
Nano $(n)$ represents $10^{-9}$.
Kilo represents $1,000$. Thus, $1\, kg$
$=1,000\, g$.