Chapter 4 Interactions Within Ecosystems D

Presentation

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Science

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7th Grade

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Practice Problem

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Hard

Anna Rogers

FREE Resource

5 Slides • 3 Questions

Multiple Choice

Why was the production of oxygen by cyanobacteria about 3.5 billion years ago significant for life on Earth?

It allowed the development of complex life forms.

It caused mass extinction.

It reduced the temperature of the planet.

It increased the amount of carbon dioxide.

Multiple Select

Which of the following are consequences of using fossil fuels, as described in the lesson?

Increase in greenhouse gases

Ozone layer damage

Decrease in biodiversity

Reduction in water pollution

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