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lozanna [386]
2 years ago
5

Explain how the digestive/excretory system is similar to a recycling center

Chemistry
1 answer:
CaHeK987 [17]2 years ago
7 0

Answer:

The digestive system is a system where our body breaks down food to acquire important nutrients. This is the same as your local recycling center because they collect and breaks the plastic down to be reused into recycled products.

The excretory system is a system where we remove excess unnecessary materials. This can be the same as the recycling center because they remove unnecessary materials (such as trash that is not meant to be recycled).

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As the concrete has cement, gravel, crushed rocks, sand, and water of different physical state and can be separated by physical methods hence it should be called as a mixture.

As the components have significant physical boundaries which clearly identify their presence, the mixture is heterogeneous and not homogeneous.

Thus this is a concrete is a heterogeneous mixture of cement, gravel, crushed rocks, sand, and water

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3 years ago
Describe how minerals are formed.
Dvinal [7]

Answer:Minerals form when rocks are heated enough that atoms of different elements can move around and join into different molecules. Minerals are deposited from salty water solutions on Earth's surface and underground

Explanation:

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2 years ago
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Can someone help me? <br><br>-just check my latest question.. thanks... ​
Harman [31]

Explanation:

{\boxed{ \fbox{ \fbox{ \fbox{ \red{hello}}}}}}

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<h2>yes can you. do this</h2>
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2 years ago
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scoundrel [369]

Answer:

1. filtration and evaporation

2. i) water is added to the sand and salt mixture

ii) then the mixture is filtrated and so the sand and the salt water was seperated

iii) the salt water is heated with the help of burner until the water gets evaporated

iv) after the water gets evaporated, the salt is remained in the container

3. observation:

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  • when filtrated the sand is seperated from the salt water
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  • the salt is precipitated and remained in the container

4. cautions:

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2 years ago
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Nastasia [14]

Answer:

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