# Bài 1:Hãy chỉ ra đâu là vật thể tự nhiên? Là vật thể nhân tạo?là vật vô sinh ?vật hữu sinh? là chất

###### Question:

Bài 1: Hãy chỉ ra đâu là vật thể tự nhiên? Là vật thể nhân tạo?là vật vô sinh ?vật hữu sinh? là chất ( những từ in nghiêng) trong các câu sau:
a/ Dây dẫn diện làm bằng đồng hoặc nhôm, được bọc trong chất dẻo (nhựa)
b/ Trong thân cây mía có chứa nhiều đường, nước và chất xơ.
c/ Quần áo may bằng sợi bông(thành phần chính là xenlulozo) mặc thoáng mát hơn may bằng nilon

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