Earth and Trees: Understanding Our Planet

What is the Earth's most superficial part where life thrives?

• The ground

• The core

• The atmosphere

• The ocean

Which natural elements are involved in the formation of soil?

• Fire and ice

• Earthquakes and volcanoes

• Sun and wind

• Lightning and thunder

What is the term for the process where rain and wind remove soil nutrients?

• Contamination

• Desertification

• Deforestation

• Erosion

How can toxic products affect the soil?

• They enrich the soil

• They help plants grow faster

• They make the soil more fertile

• They kill living organisms and contaminate water

What do trees provide that is essential for life?

• Fruit

• Wood

• Oxygen

• Shade

How do tree roots help the environment?

• They produce oxygen

• They prevent soil erosion

• They create carbon dioxide

• They absorb sunlight

What is the main cause of deforestation?

• Building more rivers

• Cutting down trees for wood and land

• Increasing wildlife

• Planting more trees

What percentage of the Earth's land area is still covered by forests?

• 20%

• 40%

• 30%

• 10%

What is one of the consequences of deforestation?

• Increased rainfall

• More oxygen production

• Accelerated climate change

• Decreased carbon dioxide levels

What can children do to help prevent deforestation?

• Use more paper products

• Plant trees and recycle paper

• Cut down more trees

• Ignore the problem