Question: The longest mission to Salyut 7 was also a record-breaker, lasting 237 days (nearly eight months) in space.

237 days is the record for the longest stay in space by a human.
Answer: no
Question: Heavy rain flooded parts of the site, with dozens of tents lost under water, while lightning strikes affected the stages and knocked out power lines.

100 tents had been washed away.
Answer: no
Question: Gold mining operations in California and Nevada use cyanide to extract the precious metal.

Cyanide is used in gold mining.
Answer:
yes