Chlorine and Mustard gas are types of poison gas, sometimes used during chemical warfare. For example Germany introduced their usage against the Allies during WW1.
Answer: B
Explanation: The U.S. dollar was no longer backed by gold.
I could be wrong but I believe it's the Cape Floristic Kingdom
Coolie was a pejorative word for Chinese indentured laborers, whose living conditions were similar to slavery.
Being a slave, who is unable to leave the duty they are performing for an enslaver and who is treated as the enslaver's property, is both the state and the condition of being an enslaved person. Typically, slavery entails the enslaved individual being forced to labor and having their location or place of residence determined by the enslaver.
Many historical instances of slavery took place as a result of criminal activity, debt, or military loss; other types of slavery were established along demographic lines, such as race. A person may be held in captivity for all of time or for a certain amount of time before being released.
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