What is the main component of natural gas?
AEthane
BPropane
CButane
DMethane
Archive
Archives: MCQs
What is the name of the galaxy that contains our Solar System?
AAndromeda
BMilky Way
CTriangulum
DSombrero
Which planet is closest to the Sun?
AMercury
BMars
CVenus
DEarth
What is the longest bone in the human body?
AHumerus
BFibula
CTibia
DFemur
Which gas is commonly used in light bulbs to prevent the filament from burning out?
AArgon
BNitrogen
CHelium
DOxygen
What is the boiling point of water at sea level?
A80°C
B90°C
C100°C
D120°C
Which layer of the Earth’s atmosphere contains the ozone layer?
AStratosphere
BTroposphere
CThermosphere
DMesosphere
What is the process by which plants lose water vapor through their leaves?
ARespiration
BEvaporation
CTranspiration
DPhotosynthesis
Which chemical element is responsible for the red color of blood?
ACalcium
BCopper
CIron
DMagnesium
Which force opposes the motion of two surfaces in contact?
AGravity
BInertia
CTension
DFriction