biodiversity

Biodiversity is

• A type of bird
• A type of plant
• A type of rock
• Variety of life forms on Earth

How many are now extinct of all the life forms that have ever existed?

• Over 99%
• Less than 50%
• Around 75%
• Exactly 50%

In which country, can one find 99% of marsupials?

What is the total number of megadiverse countries recognized by the Conservation International?

• 12
• 25
• 8
• 17

How many have been identified if there is estimated to be 100 million species on the earth?

• More than 100 million
• Exactly 100 million
• Less than 50 million
• Less than 100 million

Which of the following environments has the most biodiversity?

• Deserts
• Arctic tundra
• Grasslands
• Tropical rainforests

What is the term used to describe the variety of life forms on Earth?

• Biodiversity

• Monotony

• Homogeneity

• Uniformity

Which type of environment is known to have the least biodiversity?

• Tropical rainforests

• Grasslands

• Deserts

• Arctic tundra

Approximately what percentage of all species on Earth are estimated to be extinct?

• Over 90%

• Around 50%

• Less than 25%

• Exactly 75%

Which of the following does biodiversity not contribute to?

• Resource depletion
• Ecosystem stability
• Climate change
• Pollution