Question

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i) Complete the table by filling the blanks.
Protein
Its location
Melanin, Keratin
------------------- Bones
------------ Muscles
Haemoglobin, Antibodies
Enlist four causes of pollution.
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Answer 1

Answer:

the bones made up calcium

Answer 2

ask questions properly, down below enlisting four causes of pollution

-The burning of fossil fuels

-Exhaust from factories and industries

-Mining operations

-Household emit toxic chemicals in the air cause pollution