There was a war in 1928 or ask Google
He did this to put an end to slavery.
1. Diamonds in the deep: How gems are mined from the bottom of the ocean.
2. A major issue brought up in the article is that the sediment dredged up to get the diamonds affects the marine life. The text states, "Marine scientists argue that seabed mining degrades the marine environment, potentially impacting marine species."
I'm not to sure about 3-5. Im sorry but I hope it helps a lil!
