Geography Biosphere Challenge

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

• Biodiversity

• Biohazard

• Biochemistry

• Ecosystem

Which biome is characterized by long, cold winters and short, cool summers?

• Taiga

• Desert

• Rainforest

• Tundra

Fill in the blank: The process by which plants make their own food is called _________.

• circulation

• respiration

• digestion

• photosynthesis

Which layer of the rainforest is characterized by a dense canopy that blocks most of the sunlight?

• Canopy layer

• Understory layer

• Emergent layer

• Forest floor

What is the term for the relationship between two organisms where one benefits and the other is harmed?

• parasitism

• mutualism

• commensalism

• symbiosis

Which gas is essential for photosynthesis to occur in plants?

• Oxygen (O2)

• Nitrogen (N2)

• Hydrogen (H2)

• Carbon dioxide (CO2)

True or False: Biodiversity refers to the variety of ecosystems on Earth.

• Mostly true

• False

• Partially true

• True

What is the term for the process of breaking down dead plant and animal material?

• deterioration

• disintegration

• degeneration

• decomposition

Which biome is characterized by low temperatures, little precipitation, and permafrost?

• Savanna

• Tundra

• Desert

• Rainforest

Fill in the blank: The loss of trees in a forest is known as _________.

• afforestation

• defoliation

• reforestation

• deforestation