The Wonders of the Natural World

What causes mountains to form according to the passage?

• Movement of tectonic plates

• Erosion by wind and water

• Volcanic eruptions

• Glacial movements

Which zone of the ocean is home to most ocean life?

• Sunlight zone

• Twilight zone

• Midnight zone

• Abyssal zone

What role do forests play in maintaining the Earth's climate?

• Absorbing carbon dioxide and releasing oxygen

• Blocking sunlight

• Increasing rainfall

• Reflecting heat

Which of the following animals is mentioned as living in mountain habitats?

• Mountain goats

• Dolphins

• Tigers

• Penguins

What percentage of the Earth's surface is covered by oceans?

• More than 70%

• 50%

• 30%

• 90%