#1
Which layer of the atmosphere is closest to the Earth's surface?
Troposphere
ExplanationThe layer closest to Earth, where weather occurs.
#2
What is the primary gas found in the Earth's atmosphere?
Nitrogen
ExplanationDominant gas comprising approximately 78% of the atmosphere.
#3
Which layer of the atmosphere is responsible for protecting life on Earth from harmful solar ultraviolet radiation?
Stratosphere
ExplanationOzone layer absorbs UV radiation, crucial for life protection.
#4
What is the primary mechanism by which heat is transferred in the Earth's atmosphere?
Radiation
ExplanationHeat transfer through electromagnetic waves.
#5
In which layer of the atmosphere do most weather phenomena occur?
Troposphere
ExplanationWhere weather events like rain, storms, and clouds form.
#6
Which phenomenon causes the beautiful colors seen in the sky during sunrise and sunset?
Rayleigh scattering
ExplanationScattering of sunlight by particles, creating red and orange hues.
#7
What is the boundary between the troposphere and the stratosphere called?
Tropopause
ExplanationTransition layer marked by stable temperatures.
#8
Which layer of the atmosphere is characterized by decreasing temperatures with increasing altitude?
Stratosphere
ExplanationTemperatures rise due to the absorption of UV radiation.
#9
What causes the phenomenon known as 'blue sky'?
Absorption of blue light by air molecules
ExplanationScattering of light by air molecules, leaving blue light dominant.
#10
What is the name of the boundary between the mesosphere and the thermosphere?
Thermopause
ExplanationBoundary where temperature starts increasing.
#11
Which layer of the atmosphere contains the ozone layer?
Stratosphere
ExplanationContains the ozone layer, vital for absorbing UV radiation.
#12
What causes the formation of the Northern Lights, also known as the Aurora Borealis?
Collision of solar wind particles with Earth's magnetic field
ExplanationInteraction between solar wind and Earth's magnetic field.