Everyday Science
Everyday Science MCQs with Answers and Explanations
700+ everyday science MCQs with answers and detailed explanations for PPSC, FPSC, NTS & CSS. Repeated past-paper questions with the reasoning explained. Take a scored quiz instead →
Which planet in our solar system has the most extensive and visible ring system?
AJupiter
BSaturn
CUranus
DNeptune
What causes the occurrence of solar eclipses on Earth?
AEarth passes between Sun and Moon
BMoon passes between Earth and Sun
CSun passes between Earth and Moon
DVenus passes between Earth and Sun
Which astronomical object was reclassified as a ‘dwarf planet’ by the IAU in 2006?
ACeres
BPluto
CEris
DMakemake
Halley’s Comet orbits the Sun approximately once every how many years?
A25 years
B50 years
C76 years
D100 years
Which planet is referred to as Earth’s ‘Twin’ due to similar size and mass?
AMars
BVenus
CMercury
DNeptune
Acid rain is primarily caused by atmospheric pollution from oxides of which elements?
ACarbon and Nitrogen
BSulfur and Nitrogen
CSulfur and Phosphorous
DCarbon and Chlorine
The boundary beyond which nothing, not even light, can escape a black hole is called:
AAccretion Disk
BEvent Horizon
CSingularity
DPhoton Sphere
What term describes the functional role and position of an organism within its ecological habitat?
AEcosystem
BEcological Niche
CBiome
DBiosphere
The international treaty signed in 1987 to protect the ozone layer by phasing out ODS is:
AKyoto Protocol
BParis Agreement
CMontreal Protocol
DRamsar Convention
Organisms that produce their own food using light energy or chemical energy are called:
AHeterotrophs
BAutotrophs
CDecomposers
DSaprophytes