Question

Tropical rainforests are known for their biodiversity. Biodiversity is the amount of different plant and animal species in a particular habitat. Biodiversity is low when there are only a few different species in a habitat. It is high when there are many different species. About half of all plant and animal species found on Earth can be found in tropical rainforests. Biodiversity makes an ecosystem more stable. With more species playing different roles in an ecosystem, disturbances have a smaller impact. The ecosystem can bounce back quickly and easily. This stability makes an ecosystem more productive. Since tropical rainforests produce more than one fifth of Earth’s oxygen, this stability is important. Biodiversity is not only critical to the wellbeing of tropical rainforests, but also the wellbeing of the planet.

According to the passage, which of the following is true?

Choose one option
A
High biodiversity contributes to the climate of the tropical rainforest.

B
High biodiversity is the reason trees are so tall in the tropical rainforest.

C
High biodiversity makes a tropical rainforest a more stable environment.

D
High biodiversity means less plant and animal species play a role in the tropical rainforest’s ecosystem.

Answer 1

C

The passage states that "Biodiversity makes an ecosystem more stable" and explains that with more species playing different roles, disturbances have a smaller impact, so the ecosystem can recover quickly.