List of top Science Questions asked in Bihar Board X

The male reproductive organ of a flower is called
Blood is
How do protozoans expel excretory substances?
Which blood group is known as universal donor?
The process of purification of blood by dialysis machine is called
How many pairs of respiratory pores are found in a cockroach?
The flow of blood in the heart is
The completely digested food in the small intestine is called
Which of the following is a vestigial organ in the human alimentary canal?
The length of the small intestine in herbivorous animals is
Which of the following is the commercial unit of electrical energy?
The condition of high blood pressure is called
By which method is water absorbed by root hairs?
Which of the following controls the size of the pupil?
Which lens is used in nearsightedness (myopia)?
Which of the following is the formula to find the resistance of a coil?
The SI unit of resistance is
In which lens can both real and virtual images be formed?
Which colour of white light bends the least after passing through a prism?
How many colours are there in white light?
Which of the following is an allotrope of carbon?
Which of the following is the most acidic oxide?
Which of the elements represented by the following symbols is a metal?
The ratio of nitrogen and hydrogen atoms in one molecule of ammonia is
An alloy of mercury and another metal is called