Rainforest Quiz

What is biodiversity?

• The number of species on Earth

• The size of Earth's population

• The number of ecosystems on Earth

• The variety of life forms on Earth

Why are tropical rainforests considered to have high biodiversity?

• Tropical rainforests have challenging environmental conditions in which only a few species can survive.

• Tropical rainforests do not host unique species.

• Tropical rainforests have very few species of plants and animals.

• They provide a wide range of habitats and niches for a variety of plant and animal species to thrive.

What is an example of biodiversity in tropical rainforests?

• Different types of rocks and minerals

• Various brands of shampoo and conditioner

• Various species of monkeys, birds, insects, and plants.

• A variety of car models and colors

What is the main threat to biodiversity in tropical rainforests?

• Deforestation

• Hunting

• Climate change

• Urbanization

Why is deforestation a problem for the biodiversity of the rainforest?

• Decrease in rainfall in the rainforest

• Increase in soil erosion in the rainforest

• Loss of natural resources in the rainforest

• Loss of habitats for species

Which of the following options is NOT a benefit of tropical rainforest biodiversity?

• Difficulty in cultivating crops

• Greater availability of medicinal plants

• Protection against soil erosion

• Higher crop yields

What is the term for the variety of life in an ecosystem?

• ecosystem diversity

• species diversity

• genetic diversity

• biodiversity

In which layer of the rainforest is the greatest biodiversity found?

• emergent layer

• understory layer

• forest floor

• canopy layer

What is the approximate percentage of Earth's species that live in tropical rainforests?

• 10%

• 25%

• 50%

• 75%

What is the term for the process by which plants convert carbon dioxide into oxygen?

• respiration

• combustion

• evaporation

• photosynthesis