Earth's Atmosphere Quiz

What is the term used for a long and narrow region that transports most of the water vapour in the atmosphere?

What is the primary source of oxygen in Earth's atmosphere?

• Volcanic eruptions

• Photosynthesis by plants

• Decomposition of organic matter

• Evaporation of water

What phenomenon causes the sky to appear blue?

• Absorption of sunlight

• Emission of light by atmospheric gases

• Scattering of light by small molecules

• Reflection of ocean water

Which process is essential for maintaining the Earth's temperature during the night?

• Absorption

• Emission

• Reflection

• Scattering

What is the significance of the ozone layer in the stratosphere?

• It helps in the formation of clouds

• It absorbs harmful UV rays from the Sun

• It maintains the Earth's gravity

• It scatters visible light to make the sky blue

In which layer of the atmosphere does most weather occur?

• Stratosphere

• Mesosphere

• Troposphere

• Thermosphere

What type of winds are katabatic winds?

• Winds that blow from lower altitudes to higher altitudes

• Winds that carry low-density air upwards

• Descending winds carrying high-density air from higher altitudes down a slope

• Horizontal winds that blow across the ocean surface

What causes the auroras (Northern and Southern Lights) to occur?

• Reflection of sunlight by ice crystals

• Interaction of solar wind with the Earth’s magnetic field

• Scattering of light by atmospheric particles

• Emission of light by greenhouse gases

Which gas was NOT present in the Earth's earliest atmosphere during the Hadean Eon?

• Hydrogen

• Helium

• Nitrogen

• Methane

Which layer of the atmosphere burns up meteors?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere