Science MCQs
Practice multiple choice questions with instant feedback. Select an option to see if you're correct.
A thermos flask keeps things close to their original temperature by reducing ____?
The cooling fins at the back of refrigerator are made of black and rough surface because ____?
During the daytime, the air above the land gets heated up its density ____?
Heat is a form of energy associated with ____?
The audible range of normal human ear is ____?
Which one of the following is the main reason of heart attack?
In the periodic table, rows is considered to be a ____?
Doctors usually check the blood pressure of body through apparatus called _____?
The blood vessels that carry blood from other parts of body to the heart are called?
Who invented the telescope?
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Practice Makes Perfect
Regular practice with MCQs can improve your test-taking speed and accuracy by up to 40%.
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MCQs engage active recall, which is 50% more effective for long-term memory than passive reading.