Officerswiki is a free education & learning platform for all students and working professionals, where they can practice multiple choice questions & answers (MCQs). These all MCQs on Officerswiki are FreeMcqs which are helpful in all types of exams such as PPSC, FPSC, CSS, NTS, PMS and UPSC. Read all these questions and answer for your knowledge.
The vitamin which is generally excreted by humans in urine is__________?
A. Vitamin A
B. Vitamin B
C. Vitamin B12
D. Vitamin C
Which of the following metals occurs in free state ______________?
A. Lead
B. Iron
C. Mercury
D. Copper
Magnalium is an alloy of_____________?
A. Magnesium and Lead
B. Aluminium and Zinc
C. Aluminium and Magnesium
D. Aluminium and Mercury
By which process copper is refined ____________?
A. Roasting
B. Oxidation
C. Zone Refining
D. Electrolysis
In which part of the eye lies the pigment that decides the colour of the eyes of a person___?
A. Retina
B. Iris
C. Cornea
D. Pupal
Which among the following is responsible for producing the color of human skin ___?
A. Insulin
B. Vitamin K
C. Melanin
D. DNA
Which one of the following can be synthesized by Liver _______?
A. Vitamin B6
B. Vitamin B12
C. Vitamin K
D. Vitamin E
What is/are the basic purpose(s) of dams?
A. Storage of water in a large reservoir
B. Generation of electricity
C. Control of floods
D. All of the above
The point that lies directly above the source of an earthquake is known as _______________ ?
A. Earthquake Center
B. Epicenter
C. Gravitational Center
D. Geological Center
Which one is the world’s largest mangrove forest(s)?
A. Changa Manga Forest
B. Amazon Forest
C. Sundarbans Forest
D. None of the above
The rocks formed out of layers of sediment bonded together are known as _______________?
A. Metamorphic rocks
B. Sedimentary rocks
C. Igneous rocks
D. All of the above
What is the name of the central part of the earth?
A. Mantle
B. Core
C. Crust
D. None of the above
Evaporation from ice and snow is known as___________?
A. evaporation
B. sublimation
C. hydrogenation
D. insolation
The vitamin which is generally excreted by humans in urine is, Evaporation from ice and snow is known as, What is the name of the central part of the earth?, Which one is the world’s largest mangrove forest(s)?,What is/are the basic purpose(s) of dams?
