Grade 12 Geography_Quiz on Succession & Tropical rainforests

What is the term for the final stage of ecological succession?

• Seral climax

• Climax community

• Community

• Plagioclimax

What is a plagioclimax?

• A community maintained by human activities

• A type of tropical rainforest

• A natural climax community

• A type of seral stage

Which of the following is an example of a climate-driven biome?

• Tundra

• Tropical rainforest

• Grassland

• Desert

What is the net primary productivity (NPP) of a tropical rainforest?

• 1,500 g/m²/yr

• 2,200 g/m²/yr

• 900 g/m²/yr

• 650 g/m²/yr

What is the main characteristic of vegetation in tropical rainforests?

• Seasonal leaf shedding

• Aseasonal growth

• Low biodiversity

• Sparse vegetation

What is the height range of the emergent trees in a tropical rainforest?

• 45–50 m

• 30–40 m

• 25–30 m

• 10–20 m

What does 'edaphic control' refer to?

• Climate influence on ecosystems

• Soil conditions affecting vegetation distribution

• Natural disasters affecting ecosystems

• Human impact on ecosystems

What is a community in ecological terms?

• A group of populations interacting in a habitat

• A stage in ecological succession

• A group of species in a climax state

• A type of vegetation

What is the height of the closed canopy in a tropical rainforest?

• 25–30 m

• 45–50 m

• 10–20 m

• 30–40 m

What happens during seral succession in sand dunes?

• A climax community is formed

• A disturbance occurs

• New land is created

• Species alter the microenvironment