The Lorax - Human Impacts on Natural Ecosystems

The ecosystem in Thneedville during this part of the movie appears to be:

• out of balance

• in perfect balance

The pollution coming from the cars and the trash thrown out the windows of the cars are both examples of _______ factors in this ecosystem. 

• abiotic

• biotic

Other abiotic factors in this ecosystem could include... (check all correct answers). 

• temperature and sunlight

• wind and soil

• grass and flowers

• fish and plants

The Truffula trees are a ________ natural resource. 

• nonrenewable

• renewable

The Once-ler ate a banana. This means he is a consumer and a(n) ______ .

• carnivore

• herbivore

• omnivore

• decomposer

The Barbaloots are _______. While the shade they would play in is ______. 

• abiotic; biotic

• biotic; abiotic

Why did the Barbaloots have to leave?

• Deforestation led to a reduced food supply.

• The Once-ler didn't like them.

Why did the Lorax send the Swomee-Swans away?

• They were eating the pollution.

• Their habitats were chopped down.

• The air pollution prevented them from singing.

Why did the Humming-Fish leave?

• Their food supply was disrupted

• Their habitat was polluted

• They no longer had shade from the Truffula trees

How did the Once-ler's actions affect the Thneedville ecosystem?

• He didn't affect the ecosystem at all

• He improved the health of the ecosystem

• He destroyed the ecosystem