World War 1 saw the introduction of the following technology EXCEPT
- tanks
- poison gas
- rifles
- airplanes

My answer is rifles.

Explanation: I mean rifles have been around long before World War 1. During World War 1 tanks, airplanes, and poison gas were pretty new.

.elections are held to determine who serves in congress.

pan-africanism or pan-africanism is a political, philosophical, cultural and social movement that promotes african twinning, the defense of the rights of african people and the unity of africa under a single sovereign state, for all africans, both africa as of the african diasporas.