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Describe the entire nitrogen cycle

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Question

1. Why did most human cultures shift from nomadic, hunter/gatherer lifestyles to more sedentary agricultural practices?

2. Describe the entire nitrogen cycle. Don't forget to include how plants "fix" nitrogen.

3. Name the three types of soil textures.

4. Describe how the concentration of DDT increases in organisms at higher trophic levels. What is this process called?

5. Describe how farming practices can cause soil erosion.

1. True/ False , All risk can be prevented.

2. Define the precautionary principle.

3. What does this quote from Paracelsus mean: "Poison is in everything and nothing is without poison. The dosage makes it either a poison or a remedy."

Reference no: EM133559304

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