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University of Phoenix Material

Biosphere Worksheet

Section A: Answer the following questions in complete sentences.

1. Define biosphere. Describe the part of the biosphere where humans can survive.

2. Based on this week’s required readings, what are the main causes of threats to the biosphere?

3. Define sustainability. What do scientists predict will happen in Earth’s future if we do not increase our sustainability practices?

Section B: Fill in the chart with complete sentences.

For each item listed below, identify one related threat to the biosphere. Then, describe business practices that may cause this problem. Finally, describe alternative business practices that may help reduce or avoid this problem.

Threats	Business practices	Alternatives
Food
Water
Energy
Pollution
Species
Atmosphere
Ecological disaster

Section C: Answer the following questions in complete sentences.

1. Based on this week’s required readings, summarize the accepted positions on causes of global climate change. Then, conduct an Internet search on opposition of accepted causes of climate change. On what points do they differ? Cite at least two APA-formatted sources to support your points.

2. Which perspective do you agree with? Why?