It is never acceptable in my opinion
Answer:
65 million years ago
Explanation:
Dinosaurs became extinct 65 million years ago.
However, there were no humans alive to see them, but new technology shows they became extinct 65 million years ago.
The Grange helped farmers form cooperatives, through which they bought goods in large quantities at lower prices. The Grange also pressured state legislators to regulate business on which farmers depended, such as the operators of grain elevators that stored farmers' crops and the railroad that shipped goods to market.
Answer:
Airplanes and submarines were used for the first time, initially to locate the enemy. Field telephones and sound equipment was also used to find the enemy's location. Still, some new weapons and technology used such as chemical warfare, flamethrowers and submarines caused great fear and chaos during World War 1.
