Ecosystem and Environmental Awareness Quiz

 

Yellowstone National Park is home to a delicate ecosystem of animals, plants, and landscapes. When wolves were removed from the park, the population of certain animals, such as elk, increased dramatically. These animals began browsing on young trees and plants, which affected the forest’s ability to grow. However, the reintroduction of wolves led to a powerful change. As natural predators, the wolves helped reduce the number of grazing animals. This allowed the forest to begin regeneration, and slowly, biodiversity started to return to the area. 

Did you read this carefully? If so type yes.

(a)  

What is the best definition of an ecosystem?

• A group of animals that live in herds

• A place where people go to watch animals

• A community of living things interacting with their environment

• A part of a forest with tall trees

If something is overgrazed, what has likely happened?

• Too many animals have eaten most of the plants

• The plants have been fertilised too much

• The land is growing too many trees

• The soil has become healthier over time

The reintroduction of wolves into Yellowstone National Park means:

• The wolves were taken to a zoo

• Wolves had never lived there before

• Wolves were brought back after being gone

• Wolves were introduced to a new species

What is a predator most likely to do?

• Grow plants

• Build shelters

• Hunt other animals for food

• Clean up dead animals

If something is evenly distributed, it is:

• Put into separate piles

• Spread out fairly and equally

• Thrown around randomly

• Shared only with certain animals

What does regeneration mean in an environmental text?

• The environment is being destroyed

• The same animals are being born again

• Growth and renewal of natural areas

• Trees are being cut down for wood

A cascade effect is most like:

• A single change causing many more changes

• A waterfall in the forest

• A type of plant spreading its seeds

• A calm and steady flow of events

What would an ecologist most likely study?

• The structure of a volcano

• How living things interact in a habitat

• The movement of the stars

• The history of Native American tribes

In the phrase "the land was overgrazed," what does overgrazed suggest about the land?

• It had too many trees

• It had been damaged by too much animal feeding

• It was protected from animals

• It was fertilised for planting