Environment Day Trivia

When was the first World Environment Day celebrated?

• 1. 1954

• 1964

• 1974

• 1984

The main reason for blueness of the sky is...

• 1. Due to the presence of water vapor

• 1. Due to the absorption of blue light due to the air

• 1. Due to the scattering of sunlight by air molecules

• 1. None of the above

The yellowness of the Taj Mahal is an effect of -

• 1. Acid rain

• 1. Pollen

• Ozone depletion

• none of the above

Which of the following gasses is most present in the atmosphere?

• oxygen

• nitrogen

• hydrogen

• carbon dioxide

With Nitrogen #1, Oxygen #2, Which gas is the THIRD most present in the atmosphere?

• Hydrogen

• Carbon dioxide

• Methane

• Argon

Answer explanation

The most abundant naturally occurring gas is nitrogen (N₂), which makes up about 78% of air. Oxygen (O₂) is the second most abundant gas at about 21%. The inert gas argon (Ar) is the third most abundant gas at 0.93%.

Which of these species was first introduced to mainland Australia?

• Cane Toad

• Fox

• Rabbit

• Pigeon

Answer explanation

Rainbow Lorikeet - Native

Cane toad
(Bufo marinus) - 1935

Rabbit
(Oryctolagus cuniculus) - 1859

Red fox
(Vulpes vulpes) - 1855

The ozone layer is present in the -

• 1. Mesosphere

• 1. Thermosphere

• 1. Troposphere

• None of the above

Answer explanation

1. The OZONE layer is in the Stratosphere

CNG stands for -

• 1. Common Natural gas

• 1. Compressed Nitrogen gas

• 1. Compressed Natural gas

• 1. Certified Natural gas

Which of the following device is used to measure the atmospheric humidity?

1. Photometer

• 1. Photometer

• 1. Auxanometer

• 1. Hygrometer

• 1. None of the above

How big is the Great Pacific Garbage Patch?

• 160 times the area of Melbourne

• 80 Million times the area of the MCG

• 3 times the size of France

• None of the above

Answer explanation

The GPGP covers an estimated surface area of 1.6 million square kilometers, an area twice the size of Texas or three times the size of France.