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Answers
Answer:
Step-by-step explanation:
a) the marine life , that is the fishes and other sea animals body are developed in a way that they can breathe under water and can't breathe outside water, so if there will be no oxygen they will die.
b)it is opaque.
c) i'm not sure about this one
d) they are covered so that there is a protection from being shocked
e) take example of bottle , it is made from plastic and also glass.
f) as water gets dissolved with any other thing it is called universal solvent.
Answer:
4a) The oxygen gas dissolved in water helps the marine life to breath. 90% of the living requires O2 to breathe.
b) The palm of a human hand is opaque.
c) This is because soaps have chemicals in it which not suitable for eating. If by any means those two things mix it may cause one to have severe diarrhoea.
d) Electric wires are covered with plastics because plastic is not a conductor of electricity and us from getting an electric shock...
e)
f)Water is called a universal solvent because 90% of solute can mix in it. During a chemical reaction, it plays an important role too.
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