Wiggling Worms at Work 在线电子书 图书标签:
发表于2025-03-20
Wiggling Worms at Work 在线电子书 pdf 下载 txt下载 epub 下载 mobi 下载 2025
Deep underground and on the surface, worms are hard at work Worms work like little plows, burrowing through soil by swallowing it. As they make their way through the dirt, worms loosen the soil so roots can spread and grow. Worms eat the bits of leaves and plants mixed with the dirt and leave behind castings that feed the plants. Find out how worms help us as they wiggle their way underground.
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Wiggling Worms at Work 在线电子书 pdf 下载 txt下载 epub 下载 mobi 下载 2025