the percentage of atmospheric carbon dioxide must be low (below 1) for life to exist according to this chart true or false

Answer 1

False. The statement is not accurate. The percentage of atmospheric carbon dioxide is currently around 0.04%, or 400 parts per million (ppm). Life on Earth has existed and thrived for millions of years with carbon dioxide concentrations higher than 1%, particularly during different geological periods. However, excessively high concentrations of carbon dioxide can have detrimental impacts on climate and ecosystems.