In which decade was the ARRL founded?
A). 1940s
B). 1930s
C). 1920s
D). 1910s
1910s
On April 6, 1914, Hiram Percy Maxim proposed the formation of the American Radio Relay League.
4. The material known in commerce as Terylene is a
5. Terylene is a condensation polymer of ethylene glycol and which acid?
6. Choose the word which is different from the rest.
7. Choose the word which is different from the rest.
8. Choose the word which is different from the rest.