注释：甲图中最高点为10cm，横坐标单位为m；乙图中横坐标为t（10^﹣2s）

    Pandas are famous animals. People like them a lot. The panda's face looks like a cat's, but its fat body and short tail(尾巴) are like a bear's. So people call this animal bear-cat. Scientists call it eat bear. The panda has a very mild temperament(性情温和). It is very loveable.

    The panda is an animal only living in China. The northeastern part of Sichuan Province and southern part of Gansu Province are its native home. Pandas like to climb trees. They live in the forests of high mountains eating bamboo and drinking spring water(泉水).

有诗云：“落红不是无情物，化作春泥更护花．”诗中蕴含了科学道理：落在地上的“红”（花瓣）通过微生物分解，产生水、无机盐和二氧化碳等物质重新被植物吸收，下列叙述中，不正确的是（  ）