Final answer:
Plants are crucial for maintaining ecosystem balance, sustaining biodiversity, providing resources for humanity, and mitigating climate change. The loss of plants due to human activities poses a serious threat to our environment and our own well-being.
Step-by-step explanation:
We should care about the disappearance of plants for several critical reasons. First, plants are integral to ecosystem balance and provide essential services such as climate moderation and soil stabilization. They form symbiotic relationships with animals which are at risk when plant species disappear. Second, plants are a source of food, medicine, and other resources for humans; losing plant diversity can limit our ability to discover new medicines or crops. Third, plants play a crucial role in carbon sequestration, helping to reduce atmospheric carbon dioxide levels and mitigate climate change. The loss of plant species to logging, habitat destruction, and other human activities not only threatens our environment but our survival too.