Even though Mo Qingyan was a bit puzzled by Chen Xin's question, she still answered him: "Plants? Photosynthesis? I do have a green plant box in my bedroom. Why are you suddenly asking about food?"
"The sky is covered by a dust cloud and has lost sunlight. How do plants perform photosynthesis? Without photosynthesis, where does the oxygen in the atmosphere come from?" Chen Xin's voice was very calm, stating a fact, but it still made Mo Qingyan's heart race: "Although 70% of the oxygen in the atmosphere comes from ocean ecosystems, even algae need sunlight to produce oxygen, and now there's no sunlight."
"You mean the oxygen in the atmosphere could disappear?" Mo Qingyan asked Chen Xin, a bit panicked.
