Everyday Science
Everyday Science MCQs With Answers
741 Everyday Science MCQs for CSS, PPSC, FPSC, NTS and entry-test preparation. Take a scored quiz instead →
Ethanol, the type of alcohol found in beverages and used in hand sanitizers, is commonly produced through which biological process?
AElectrolysis of salt water
BFermentation of sugars by yeast
CDistillation of water
DCombustion of hydrocarbons
Sound waves are classified as which type of wave, based on how particles move relative to the wave’s direction of travel?
ALongitudinal waves
BTransverse waves
CStanding waves only
DElectromagnetic waves
According to Newton’s law of universal gravitation, the gravitational force between two objects depends on what factors?
ATheir speed alone
BTheir color and temperature
CTheir exact chemical composition only
DTheir masses and the distance between them
What is the key difference between an antiseptic and a disinfectant?
AThere is no meaningful difference between the two terms
BAntiseptics are used on living tissue, while disinfectants are used on non-living surfaces
CAntiseptics only work against viruses, never bacteria
DDisinfectants are used on living tissue, while antiseptics are used on non-living surfaces
In the visible light spectrum, which color has the shortest wavelength?
AViolet
BOrange
CYellow
DRed
What term describes the point in an object where its entire weight can be considered to act, and which affects the object’s stability?
AFocal point
BCenter of gravity
CPivot point only
DTerminal point
What is the name of the green pigment found in plant leaves that absorbs light energy for photosynthesis?
AChlorophyll
BHemoglobin
CMelanin
DCarotene
Adrenaline, the hormone responsible for the body’s fight-or-flight response, is produced by which glands?
AThyroid glands
BSalivary glands
CPituitary gland
DAdrenal glands
Which statement about bacteria in the human digestive system is accurate?
AAll bacteria in the gut are harmful and cause disease
BMany gut bacteria are beneficial and assist with digestion and vitamin production
CGut bacteria play no role in the immune system
DThe human gut naturally contains no bacteria at all
What term describes an involuntary, rapid response to a stimulus, such as pulling a hand away from a hot object?
ACognitive response
BReflex action
CVoluntary action
DConditioned learning