EARTH DAY 2023

More than half of the breathable oxygen in the world comes from where?

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Answer explanation

More than half of our breathable oxygen comes from the ocean, the majority of which is provided by tiny plants called phytoplankton.

How much of the world’s oxygen is produced by just the Amazon rainforest?

• 1%

• 5%

• 10%

• 20%

Answer explanation

Trees convert carbon dioxide into oxygen. More than 20 percent of the world’s breathable oxygen — one in five breaths — is produced in the Amazon rainforest alone.

How much oxygen does an average 50-year-old tree provide?

• Enough for 1 person per year

• Enough for 50 people a year.

• Enough for 4 people a year.

• Enough for 100 people a year.

Answer explanation

It's 4 people a year. Assuming it lives 50 years, a single tree will produce 6,000 pounds of breathable oxygen in its lifetime, enough for about four people a year.

Which of the following ailments can be treated by prescription drugs derived from plants found in the rainforest?

• CANCER

• HYPERTENSION

• ASTHMA

• ALL OF THE ABOVE

Answer explanation

Yes! Over 120 prescription drugs sold worldwide have been derived from plants found in rainforests, including vincristine, a cancer drug, and theophylline, which is used to treat asthma.

Around the world, how many Indigenous people live in forests?

• 1 million

• 5 million

• 8 million

• 50 million

Answer explanation

Forests are home to 50 million Indigenous people around the world, more than the populations of Tokyo, Mexico City, London, New York City and Cairo combined.

Which land-based ecosystem holds the most biodiversity, i.e. concentration of plants and animals?

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Answer explanation

Tropical forests cover less than 7 percent of Earth’s land mass but are home to about 50 percent of all living things on the planet.

What is the EARTH DAY 2023 THEME?

• Invest In Our Planet

• Empower our planet

• Sustain our planet

• Regenerate our plant

When was the very first EARTH DAY observed?

• 1960

• 1970

• 1980

• 1990

Answer explanation

The birth of the modern environmental movement in 1970.

On which day is Earth day observed every year?

• Every year on April 22

• Every year on April 23

• Every year on April 24

• Every year on April 21

Answer explanation

Every year on April 22, Earth Day marks the anniversary of the birth of the modern environmental movement in 1970.

Earth Day is observed for the following reasons

• CLEAN ENERGY

• CLIMATE CHANGE

• RECYCLING CAMPAIGN

• SUSTAINABLE LIVING

• ALL OF THE ABOVE