Everyday Science — All MCQs
2717 questions available
Q841.Beaufort Scale” is used to measure____?
Correct Answer: A
The Beaufort Scale is used to measure and describe wind speed/velocity based on observed sea or land conditions.
Q842.Being Myopic means you have problem in seeing ____?
Correct Answer: A
Myopia (nearsightedness) causes difficulty in clearly seeing distant objects, while close objects remain clear.
Q843.Big Bang theory explains____?
Correct Answer: A
The Big Bang theory explains the origin and expansion of the universe from an extremely hot, dense initial state.
Q844.Big Bang was an explosion that occurred ?
Correct Answer: B
The Big Bang is estimated to have occurred roughly 13.8 billion years ago (often cited historically as approximately 15 billion years).
Q845.Biggest award in the field of science is the ____?
Correct Answer: A
The Nobel Prize is widely regarded as the biggest and most prestigious award in the field of science.
Q846.Biopsy is done on tissues taken from____?
Correct Answer: C
A biopsy involves taking a sample of tissue from a living body for diagnostic examination.
Q847.Biosensor is used to measure?
Correct Answer: A
A biosensor is commonly used to measure blood glucose levels, as in glucometers used by diabetics.
Q848.Birth control pills contain synthetic____?
Correct Answer: B
Birth control pills contain synthetic hormones (estrogen and/or progestin) that prevent ovulation.
Q849.Black gold is an oil; Black diamond is____?
Correct Answer: C
Just as petroleum oil is called 'black gold,' coal is often referred to as 'black diamond' due to its economic value.
Q850.Bleaching action of chlorine is by____?
Correct Answer: A
Chlorine's bleaching action works through oxidation, breaking down colored compounds into colorless ones.
Q851.Bleaching powder contains____?
Correct Answer: C
Bleaching powder (calcium hypochlorite) contains chlorine as its active bleaching agent.
Q852.Blood does not coagulate inside the body due to the presence of____?
Correct Answer: C
Heparin, a natural anticoagulant present in blood and tissues, prevents blood from coagulating (clotting) inside the body under normal conditions.
Q853.Blood glucose level is raised by the following except ____?
Correct Answer: B
Insulin lowers blood glucose levels, unlike hormones such as glucagon, adrenaline, and cortisol which raise it — so it's the exception among factors that raise blood sugar.
Q854.Blood is cleaned by ____?
Correct Answer: D
The kidneys filter and clean the blood, removing waste products and excess substances.
Q855.Blood sugar is measured in:
Correct Answer: B
Blood sugar (glucose) levels are typically measured in milligrams per deciliter (mg/dL).
Q856.Blood which heart pumps to lungs is____?
Correct Answer: A
The blood the heart pumps to the lungs (via the pulmonary artery) is deoxygenated blood, sent for oxygenation.
Q857.Boiling of an egg is a change which is____?
Correct Answer: B
Boiling an egg is a chemical change, since heat causes irreversible denaturation of the proteins inside.
Q858.Boiling point of pure water is ____?
Correct Answer: C
The boiling point of pure water at standard atmospheric pressure is 100°C.
Q859.Bolometer measures: ____?
Correct Answer: C
A bolometer is an instrument used to measure the intensity of heat radiation.
Q860.Bones Ash contain?
Correct Answer: C
Bone ash mainly contains calcium phosphate, though calcium compounds broadly (including sulphate forms) are associated with bone mineral content.