Important Science mcqs repeated in IBA, fpsc, ppsc, spsc, nts test ( Science Study MCQs, questions and answers ) IBA bps 5 to 15 jobs updated
Theory of expanding universe was propounded by?
Hubble
The main chemical substance present in teeth and bones of animals is?
Calcium phosphate
A lake starts breezing because of the cold atmosphere, it will first freeze?
At the top surface
Male brain’s weight is ………….?
5.21oz
Female brain’s weight is ……….?
4.52oz
Sonar is used to measure?
Ocean depth
Radar receive waves called?
Radio waves
Microscope was invented by ………..?
Levin Hook in 1860 (Netherland)
Hemoglobin fetches oxygen to ………..?
RBCs
Gram is the unit of ……….?
Mass
Which is the smallest unit of heredity?
Gene
The biggest species of the cat family is ……….?
Tiger
Function of iron in our body is to ……….?
Transport Oxygen
Silver fish belongs to ……….?
Amphibian
The planet which revolves slowly around the sun is?
Neptune
Liver uses which vitamin for creating new BRCs?
B12
Deficiency of B12 can produce ……?
Insomnia
The most important stimulant in tea leave is?
Galileo
Bats can also fly in the dark due to?
Ultrasonic waves
Mercury thermometer was invented by?
Galileo
The gas associated with global warming is?
CO2
The term cell was coined by?
Robert Hooke
Blood clotting happens in which part of the human body?
Veins
The name of the disease called “lock jaw” is?
Tetanus
The gas used for artificial ripening of green fruit is?
Ethylene
Silica is used in?
Glass making
The muscles tissues and blood all are made up of?
Proteins
Deficiency of chloride causes the impaired growth in?
Plants
Nitrogen occurs in plants and animals in the form of?
Proteins
A device that converts chemical energy into electric energy is called?
Generator
Which branch of physics deals with the internal structure of earth?
Geophysics
Which planet has the largest natural satellites or moons?
Saturn (82 moons)
The planet mercury completes one rotation around the sun in?
88 days
The most dense and heaviest planet is?
Earth
Silicon is an example of?
Semiconductor
Deficiency of iron in human diet causes?
Anemia
Which human hormone is called “love Hormone”?
Oxytocin
Wisdom teeth normally grow during the age of?
17 to 30 years
Malaria is a disease which affects …….?
Spleen
Cell Phone was invented in 1973 by?
Martin Cooper
A “Gene” is a ………..?
Unit of heredity
Enzymes help in ……….?
Digestion of food
Lack of ……. causes diabetes?
Insulin
There are approximately …………. muscles in human body?
700
Which gland in human body is popularly called “Adam’s Apple”?
Thyroid
Deficiency of calcium leads to ………?
Rickets
Our sun is a star. What type of star is it?
Yellow dwarf
Arachnophobia is the fear of …………?
Spiders
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