Answer:
Yes Education is useful for environmental services systems as if we study more and more about the topic, we can understand it better and help people.
Explanation:
Explanation:
A material can convert from ductile into brittle material by following reasons
1.At low temperature
2.Due to notches present in materials
When temperature is very low then a ductile material starts to behave like brittle material and it leads to failure of the material.
When material consists large number of notches then it losses it ductility and behave like brittle materials.
During the world war second ships are failed because temperature of sea became to low and due to this steel (ductile material) converted into brittle material and failed without giving any warning.
Answer:
A sand bed is necessary because it provides a refractory bottom for molten metal
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Answer:
<h2 /><h2>False</h2>
yeah cuz I got it
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