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Mariana [72]
3 years ago
6

Which of the following is a physical change? A newspaper burns when placed in a fire. An iron chair rusts when left outside. A s

ample of water boils and releases gas. A plant changes carbon dioxide and water into sugar. Question 3(Multiple Choice Worth 2 points) Which of these statements best describes the relationship between elements, compounds, and pure substances? Pure substances can be divided into two groups: elements and compounds. Compounds can be divided into two groups: pure substances and elements. Elements and pure substances are two of many different types of compounds. Pure substances and compounds are two of many different types of elements.
Biology
2 answers:
kvasek [131]3 years ago
8 0

The answer is: Pure substances can be divided into two groups: elements and compounds.(For 2nd question)

allsm [11]3 years ago
7 0
A because a physical change , changes the appearance. the multiple choice question is A. 
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A male bison charging another male bison is an illustration of which behavior?.
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Bison are big mammals that belong to the family Bovidae. Male bison charging each other shows the competition among organisms of the same species.

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Competition is the ecological relationship between the organism of the ecosystem that can be positive, neutral or negative. It can be between species or among the member of the species.

Two bison fighting each other shows the competitive relationship between both of them as they both belong to the same species and can fight for territory, food, resources, reproduction and many others factors.

Therefore, the Bison charging shows competitive relationships among the same species.

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