Hard Shell of shellfish is made up of : – McqOptions

MCQOPTIONS

1.	Hard Shell of shellfish is made up of :
A.	Sulphur
B.	Calcium carbonate
C.	Magnesium oxide
D.	Phosphorus
E.	None of these
Answer» C. Magnesium oxide

Discussion

No Comment Found

Related MCQs

Where does rain water, after percolation, get collected?
Name a natural calamity which does not involve wind.
DIRECTIONS: Read the passage given below and answer the questions that follow. Passage - 2 Treatment of waste water involves physical, chemical and biological processes, which remove physical, chemical and biological matter that contaminates the waste water. The treated water coming out of WWTP
Which of the following contaminate water?
Why does ice float on water?
It is the minimum amount of water recommended by United Nations for drinking, washing, cooking and maintaining proper hygiene. It is recommended per person and is
Which of the following trees should be planted along sewage ponds?
Choose the correct option for the given figure?
Mukta conducted an experiment in which two potato tubers X and Y (of equal size) were peeled and a cavity was made in each of them. X was boiled while Y was not. The cavities in the both tubers were filled with sugar solution and they were then placed in beakers containing distilled water. Select the correct statement regarding the result of this experiment.
Lightning is a stream of flowing electrons. It occurs when (i) Charges accumulated on the cloud discharges through it. (ii) A huge mass of charged layer of cloud discharges with the Earth.