Answer :
Final answer:
Machine guns were already in use before WWI, making them the only option from the list that was not a new technology on the battlefield. The other options, like airplanes, tanks, and poison gas, represent innovations introduced during the war. Thus, the answer is machine guns.
Explanation:
New Technology in WWI
World War I was marked by significant advancements in military technology, affecting combat and strategies used in warfare. The question lists several weapons and asks which of the options provided did not first appear on WWI battlefields.
Technologies Developed Before WWI
- Airplanes - Although they were used in limited capacities before WWI, they became an essential part of warfare during the conflict.
- Tanks - Tanks were introduced during WWI as a response to trench warfare, providing a new way to break through enemy lines.
- Poison gas - This chemical weapon was first effectively used during WWI, representing a horrific new method of warfare.
- Machine guns - Machine guns saw extensive usage in WWI, but they were developed prior to the war and had been in use in earlier conflicts.
Conclusion
Therefore, the correct answer to the question is machine guns, as they were not a new technology debuting in WWI but rather a weapon with existing use that continued to evolve during the war.
Learn more about WWI Technology here:
https://brainly.com/question/41084402
