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 →
Halogens, a reactive group of non-metal elements including chlorine, fluorine, and iodine, are found in which part of the periodic table?
AThe group second from the right
BThe very top row only
CThe leftmost group
DThe middle transition metal block
Amphibians, such as frogs, are characterized by which typical life cycle pattern?
ASpending their entire life exclusively underwater
BLiving exclusively in extremely cold climates
CNever requiring any water at any life stage
DTypically beginning life in water and later transitioning to also live on land
How does vaccination generally help protect a person against a specific disease in the future?
ABy training the immune system to recognize and respond quickly to a specific pathogen without causing the actual disease
BBy permanently curing all existing infections in the body
CBy directly killing pathogens already present in the bloodstream
DBy eliminating the need for the immune system entirely
Fluoride is commonly added to toothpaste and some water supplies primarily for what health benefit?
ATo whiten teeth instantly
BTo reduce blood pressure
CTo help prevent tooth decay by strengthening tooth enamel
DTo improve digestion
Which of the following is a defining characteristic shared by nearly all mammals?
AThey all lay eggs
BThey all live exclusively in water
CThey lack a backbone
DThey have hair or fur and typically nourish their young with milk
In immunology, what term describes a substance, often found on the surface of a pathogen, that triggers a specific response from the immune system?
AAntigen
BEnzyme
CAntibody
DHormone
What term describes the chemical spoilage process in which fats and oils develop an unpleasant smell and taste due to oxidation over time?
ASublimation
BRancidity
CFermentation
DSaponification
The platypus is a notable and unusual example of which small group of mammals that lay eggs rather than giving birth to live young?
AMonotremes
BPrimates
CRodents
DMarsupials
An allergy occurs when the immune system reacts abnormally to what type of substance?
AOnly to substances that are inherently toxic to everyone
BOnly to extreme temperatures
CTo substances that are typically harmless to most people
DOnly to bacteria and viruses
What term describes the visible bubbling or fizzing that occurs when a gas is released from a liquid, such as when an antacid tablet dissolves in water?
ASublimation
BPrecipitation
CDistillation
DEffervescence