Leo had two problems. First, he didn’t know the answer. Second, he knew exactly where to look.
He wrote that down. Then he looked at the root hair diagram again. “The soil has less… no, more minerals outside? Wait, the soil has lower concentration of nitrates than inside the root. So the plant has to pump them in against the gradient. That’s why it needs energy. That’s why it’s active.” exploring science 9 student book answers pdf
His fingers hovered over the keyboard. He typed: "exploring science 9 student book answers pdf" Leo had two problems
His pen moved. The answer took shape—messy, full of cross-outs, but his. When he finished, he didn’t feel the clean satisfaction of a copied PDF. He felt something slower, warmer: understanding, settling into his bones like heat after a long walk. He wrote that down