Changes to an Environment

Burning fossil fuels adds carbon dioxide to the air. What could be done to reduce the amount of carbon dioxide and increase the amount of oxygen in areas where fossil fuels are burned?

• Building houses

• Driving cars

• Planting trees

• Burning our trash

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What is one way an animal can change the ecosystem?

• Chipmunks can hibernate through winter

• Arctic foxes fur changes from brown to white in the winter

• Geese migrate to lay their eggs

• Beavers build a dam on a stream to create their homes

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Natural disasters can also change ecosystems. What can organisms do if a disaster happens?

• Fight, Survive, Struggle

• Move, Adapt, Die

• Stay, Sleep, Survive

• Eat, Sleep, Repeat

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An example of a natural change to the ecosystem is:

• highway built in the middle of the desert. 

• Lightening strikes and starts a fire in the forest. 

• rancher placing too many grazers in a small area leading to overgrazing.

A fire destroys all of the trees and plants in the forest. How might this affect the birds in the area?

• The birds will plant seeds and grow new trees.

• The birds will have more food to eat.

• The birds will plant seeds and grow new trees.

• The birds will have no place to build their homes.

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How does a bird "change its environment" to meet its NEEDS?

• builds a nest

• flies around

• catches bugs

• looks for something to eat

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What would most likely happen if an ecosystem no longer received sunlight?

• The number of herbivores would increase

• The number of plants would increase

• all organisms would adapt

• All living organisms would eventually die

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Which activity is harmful to one’s environment?

• Shaping lumber into a table

• Burning plastics and old tire

• Cutting old clothes to make a face mask

• Cutting of fabric to be made into clothes

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What do you think will happen if people will continue to throw

garbage in the river?

• A. Nothing will happen

• B. We will enjoy fishing in the river.

• C. The river will be dirty and will eventually die.

• D. The river will be the best habitat for animals.

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What will happen if waste materials will be dumped in an open

land?

• A. It will serve as breeding places of pest.

• B. Growing plants is possible in this land.

• C. Nothing will happen since it is just a waste.

• D. The soil will become healthy for animals and plants.

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