A nuclear reactor is a device to produce nuclear energy with the help of---
A nuclear reactor is a device to produce nuclear energy with the help of---
Which one of the following is used for bleaching purposes?
Which one of the following is used for bleaching purposes?
"To every action there is an equal and oposite reaction"-- this theory has been given by--
"To every action there is an equal and oposite reaction"-- this theory has been given by--
Which of the following is not the name of Greek God?
Which of the following is not the name of Greek God?
The telephone was invented by-
The telephone was invented by-
What is the name given to molten rocks that are erupted by a volcano?
What is the name given to molten rocks that are erupted by a volcano?
Which of the following statements is true?
Which of the following statements is true?
The velocity of light was measured by—
The velocity of light was measured by—
To glavanise iron, iron is coated with which of the followiing?
To glavanise iron, iron is coated with which of the followiing?
Who among the following evolved the concept of relationship between mass and energy?
Who among the following evolved the concept of relationship between mass and energy?
How many legs do butterflies have?
How many legs do butterflies have?
Natural hot water springs occuring in New Zealand, Italy and Iceland are known as—
Natural hot water springs occuring in New Zealand, Italy and Iceland are known as—
SMS available in mobile phone stands for—
SMS available in mobile phone stands for—
Decible is unit of-
Decible is unit of-
What are metal bearing rocks called?
What are metal bearing rocks called?
Where is the headquarters of the UN Security council located at?
Where is the headquarters of the UN Security council located at?
Which one of the following gases is predominant in the atmosphere?
Which one of the following gases is predominant in the atmosphere?
Light year is related to—
Light year is related to—
Which planet has recently been the target of a lot of controversy?
Which planet has recently been the target of a lot of controversy?
ডুবোজাহাজে কোন যন্ত্রের সাহায্যে পানির নিচ থেকে উপরের দৃশ্য দেখা যায়?
ডুবোজাহাজে কোন যন্ত্রের সাহায্যে পানির নিচ থেকে উপরের দৃশ্য দেখা যায়?
Who developed the small pox vaccination?
Who developed the small pox vaccination?
Which of the following acids is most important in building tissue proteins?
Which of the following acids is most important in building tissue proteins?
The center of the earth is known as the—
The center of the earth is known as the—
The credit of developing the polio vaccine goes to—
The credit of developing the polio vaccine goes to—
Which of these is not a planet in the Solar System?
Which of these is not a planet in the Solar System?
Which one of the following substances undergoes chemical change on heating?
Which one of the following substances undergoes chemical change on heating?
Who proposed the chemical evolution of life?
Who proposed the chemical evolution of life?
What is the acceptable safe limit of Arsenic per liter of water?
What is the acceptable safe limit of Arsenic per liter of water?
Which of the following is a unit of pressure?
Which of the following is a unit of pressure?
Stainless steel is an alloy of iron and—
Stainless steel is an alloy of iron and—
Which of the following pairs is incorrect?
Which of the following pairs is incorrect?
Joule is the unit of—
Joule is the unit of—
What invention bought Alfred Nobel fame and fortune?
What invention bought Alfred Nobel fame and fortune?
Which planet is nearest to the Sun?
Which planet is nearest to the Sun?
Fish preathe through—
Fish preathe through—
Which of the following compounds are responsible for acid rain?
Which of the following compounds are responsible for acid rain?
বস্তুর ওজন সবচেয়ে বেশি—
বস্তুর ওজন সবচেয়ে বেশি—
Starch is a mixture of—
Starch is a mixture of—
The first attempt in printing was made in England by—
The first attempt in printing was made in England by—
Study of earthquakes is known as—
Study of earthquakes is known as—
Which of the followings is not a part of milk?
Which of the followings is not a part of milk?
The unit of current is—
The unit of current is—
A universal doner is a person having blood group of—
A universal doner is a person having blood group of—
The hardness of the bone tissue is due to the phosphates and carbonates of which of the following pairs of elements?
The hardness of the bone tissue is due to the phosphates and carbonates of which of the following pairs of elements?
Which organization of UNO declared prohibition on Clone human chiled?
Which organization of UNO declared prohibition on Clone human chiled?
Which of the following is a device for storing electric charge?
Which of the following is a device for storing electric charge?
The universal blood group donor is—
The universal blood group donor is—
Hygrometer is used to measure—
Hygrometer is used to measure—
When we breathe which of the following gases do we use?
When we breathe which of the following gases do we use?
What is the name given to the respiratory holes on the surface of a leaf?
What is the name given to the respiratory holes on the surface of a leaf?
Which one of the following forms an irreversible complex with hemoglobin of the blood?
Which one of the following forms an irreversible complex with hemoglobin of the blood?
Which of the following is the mde of propagation of heat from the sun to the earth?
Which of the following is the mde of propagation of heat from the sun to the earth?
Which of the following is the main source of energy of the sun?
Which of the following is the main source of energy of the sun?
Every molecule of water contains—Oxygen and Hydrogen.
Every molecule of water contains—Oxygen and Hydrogen.
Wright Brothers are regarded inventors of the-
Wright Brothers are regarded inventors of the-
Which of the following is a main component of comon glass?
Which of the following is a main component of comon glass?
Sir Jagadish Chandra Bose is famous for his contribution in the field of—
Sir Jagadish Chandra Bose is famous for his contribution in the field of—
Anatomy is the branch of science which deals with—
Anatomy is the branch of science which deals with—
With which device are earthquakes recorded?
With which device are earthquakes recorded?
Which one of the following crops requires continuous semi-aquatic condition for cultivation?
Which one of the following crops requires continuous semi-aquatic condition for cultivation?
Which of the following is necessary for a substance to burn?
Which of the following is necessary for a substance to burn?
Hepatitis C increases the risk of—
Hepatitis C increases the risk of—
The credit of inventing the television goes to-
The credit of inventing the television goes to-
Eugenics is the study of-
Eugenics is the study of-
In tritinum, electrons, protons and neutrons are present in the ratio of—
In tritinum, electrons, protons and neutrons are present in the ratio of—
What is the correct increasing order of abundance of the main components of air?
What is the correct increasing order of abundance of the main components of air?
What do scientists beleve global warming is caused by?
What do scientists beleve global warming is caused by?
The tendency of a liquid drop to assume spherical shape is due to—
The tendency of a liquid drop to assume spherical shape is due to—
Oncology is the study of—
Oncology is the study of—
Which of the following is not a part of the human eye?
Which of the following is not a part of the human eye?
Which one of the following is used for bleaching purposes?
Which one of the following is used for bleaching purposes?
Mark the wrong combination—
Mark the wrong combination—
Which one of the following has the shortest wave length?
Which one of the following has the shortest wave length?
On burning charcoal which of the following gases is produced?
On burning charcoal which of the following gases is produced?
A citrus fruit means that the fruit is rich in-
A citrus fruit means that the fruit is rich in-
Which of the following is the most toxic gas?
Which of the following is the most toxic gas?
Heating element of an electric heater is made up of--
Heating element of an electric heater is made up of--
What is known as the universal solvent?
What is known as the universal solvent?
Which human gland does secret growth hormone?
Which human gland does secret growth hormone?
Which gas is present under pressure in soft drinks?
Which gas is present under pressure in soft drinks?
Which instrument is used to measure pressure?
Which instrument is used to measure pressure?
One liter of water is equivalent to how many kilograms?
One liter of water is equivalent to how many kilograms?
The virus of Swine Flu is named as—
The virus of Swine Flu is named as—
Which one of the following is not a noble gas?
Which one of the following is not a noble gas?
Meteorology is the science of—
Meteorology is the science of—
For which of the following purposes is a transformer used?
For which of the following purposes is a transformer used?
Which one of the following serves as host tree for silkworm to produce good silk?
Which one of the following serves as host tree for silkworm to produce good silk?
The length of the days and nights is equal at the—
The length of the days and nights is equal at the—
In Y2K, K stands for—
In Y2K, K stands for—
The blood group which is univershal recipient is—
The blood group which is univershal recipient is—
Every atom of Carbon di-oxide contains -- Oxygen and --- Carbon.
Every atom of Carbon di-oxide contains -- Oxygen and --- Carbon.
What is there in the North Polar region?
What is there in the North Polar region?
Anopheles mosquito causes which of the following deases?
Anopheles mosquito causes which of the following deases?
How many Dynes are there in one gram weight?
How many Dynes are there in one gram weight?
Who invented the ball point pen?
Who invented the ball point pen?
What causes an eclips of the sun?
What causes an eclips of the sun?
Solar Energy is a—
Solar Energy is a—
What is the difference between Bangladesh Standard Time and Greenwich Mean Time?
What is the difference between Bangladesh Standard Time and Greenwich Mean Time?
Which one of the following contributes largely to the green-house gas effect?
Which one of the following contributes largely to the green-house gas effect?
