Effects of Industry - Pearson Science 7 Chapter 5.4

A species is said to be extinct when

• It hasn't been seen in the wild for over 5 years.

• It hasn't been seen in the wild for over 50 years and the last known individual has died.

• It's numbers are very small.

• It is experiencing a rapid decline in population.

A species is said to be endangered when

• It's numbers are low and is spread out over a large area.

• It hasn't been seen in the wild for over 50 years and the last known individual has died.

• It's close to extinction and very small numbers remain.

• It is experiencing a rapid decline in population.

A species is said to be vulnerable when

• It's numbers are low and is spread out over a large area.

• It hasn't been seen in the wild for over 50 years and the last known individual has died.

• It's close to extinction and very small numbers remain.

• It is experiencing a rapid decline in population.

A species is said to be rare when

• It's numbers are low and is spread out over a large area.

• It hasn't been seen in the wild for over 50 years and the last known individual has died.

• It's close to extinction and very small numbers remain.

• It is experiencing a rapid decline in population.

The helmeted honeyeater, the blue whale, the beaked gecko and the Leadbeater's possum are all classified as

• Extinct

• Endangered

• Vulnerable

• Rare

The mountain pygmy-possum, the giant Gippsland earthworm, the Mallee fowl, the bilby and the diamond python are all classified as

• Extinct

• Endangered

• Vulnerable

• Rare

The eastern wallaroo, the leafy sea dragon, the powerful owl and the alpine tree frog are all classified as

• Extinct

• Endangered

• Vulnerable

• Rare

In the past 200 years, how many Australian native plants and animals have become extinct?

• 25

• 50

• 100

• more than 125

Rainforests in Sumatra are being logged and burnt to make plantations of

• Palm oil

• Vegetable oil

• Sugar cane

• Coffee

Which of the following animals have become critically endangered due to the clearing of the rainforests in Sumatra?

• Sumatran elephant

• Sumatran tiger

• Sumatran rhino

• Sumatran orang-utan