The Importance of Trees and Their Role on Earth

What role do trees play in Earth's ecosystems?

• They are a source of pollution.

• They are irrelevant to ecosystems.

• They are the silent architects and custodians.

• They are primarily decorative.

Approximately how many tree species are there on Earth?

• 100,000

• 73,000

• 50,000

• 10,000

What is the significance of the Methuselah tree?

• It is the oldest living organism.

• It is the tallest tree.

• It is the most colorful tree.

• It is the widest tree.

How do trees contribute to the balance of atmospheric gases?

• By absorbing hydrogen and releasing helium.

• By absorbing nitrogen and releasing methane.

• By absorbing carbon dioxide and releasing oxygen.

• By absorbing oxygen and releasing carbon dioxide.

What happens to ecosystems when trees are lost?

• They become more stable.

• They become more diverse.

• They collapse and lose biodiversity.

• They remain unchanged.

What would be a major consequence of losing all trees?

• Runaway climate change.

• Decrease in global temperatures.

• Increase in global oxygen levels.

• Stabilization of sea levels.

What role do tree roots play in preventing soil erosion?

• They anchor soil and maintain its structure.

• They have no effect on soil.

• They increase soil erosion.

• They make soil more acidic.

Which of the following is a real-life threat to trees?

• Increased rainfall

• Deforestation

• Abundant wildlife

• Excessive sunlight

What is a sustainable practice to help preserve trees?

• Implementing forestry plans for regeneration

• Planting only one type of tree everywhere

• Ignoring tree conservation efforts

• Clear-cutting forests

What is the significance of trees in cultures and traditions?

• They are considered bad luck.

• They are only used for fuel.

• They hold a sacred place and inspire art and science.

• They are often seen as nuisances.