Which of the following produces a chemical change? a. liquid wax hardens into the shape of a candle b. a piece of iron is ground into iron powder c. ice melts to form water d. paper burns to form carbon dioxide and water

*will mark brainliest* certain species of are now recognized as indicators of environmental pollution. a. lichen b. mushroom c. yeast d. none of the above

Which sentence is an example of a strong conclusion to an autobiography? a. i stayed after school three days in a row to practice onstage in the auditorium. b. i knew i would have to practice all week to memorize my dance for the recital. c. after the recital was over, i knew practicing was worth it, and i was looking forward to my next big challenge. d. on opening night, i danced in front of a packed auditorium.

Which description provides the best objective summary of the article in the passage?