name the main metal present in:-
hemoglobin
chalk
chlorophyll
chocolate wrappers
Answers
Answered by
2
Answer:
The main metal present are:
(a) Iron
(b) Calcium
(c) Magnesium
(d) Aluminium
Answered by
0
Explanation:
Pressure is scalar quantity which is defined as force per unit area where the force acts in a direction perpendicular to the surface.
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