Answer:
On April 22, 1915, German forces shock Allied soldiers along the western front by firing more than 150 tons of lethal chlorine gas against two French colonial divisions at Ypres, Belgium. This was the first major gas attack by the Germans, and it devastated the Allied line.
Explanation:
The answer may be D, discrimination
It could cause a big lost of the black bear population.
They can gradually decrease and this can lead to an end worse than the decrease in species
It’s the black tape that you can put around like wires and stuff