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Scientists around the world agreed that life may have originated from non-living matter in a series of four step.  The third step is the formation of the protobiont.

Archaea which live in high-salt concentrations are referred to as

A round-shaped bacterium would be classified as a

You are a biologist studying unicellular prokaryotes in extremely hot pools of water. In which of the following groups would you most likely place these organisms?

[CHAPTER 10 – Air Quality and Climate Change]   Global climate change has had numerous effects on Earth. Which effect has been a result of global climate change?

[CHAPTER 9 – Conventional Energy: Fossil Fuels]   Refer to Infographic 5. What is the CORRECT order of the steps involved in fracking? Gas escapes through fractures and is collected. Holes are blasted into rock, using explosive charges. A well is drilled down into rock and then extended horizontally. A slurry of sand, water, and chemicals is pumped into fractures in the rock.

[CHAPTER 11 – Alternatives to Fossil Fuels]    Which statement is NOT one of the causes of the high expense involved in nuclear power production?

[CHAPTER 10 – Air Quality and Climate Change]   Much of which city will be under water at some point if we don’t address climate change?

[CHAPTER 11 – Alternatives to Fossil Fuels]    Turning off lights when you leave a room or switching to LED lighting is an effective conservation method because lighting usually accounts for _____% of average home electrical costs.

[CHAPTER 7 – Geological and Land Resources ]    Which statement is a sociocultural benefit of forests?