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Tenth Grade (Grade 10) Biogeochemical Cycles Questions

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Grade 10 Biogeochemical Cycles
Which cycle involves transpiration? Select all that apply.
  1. hydrologic
  2. phosphorus
  3. nitrogen
  4. carbon
Grade 10 Biogeochemical Cycles
Which nutrient is not cycled through the atmosphere and stays only on ground level?
  1. Nitrogen
  2. Sulfur
  3. Carbon
  4. Phosphorus
Grade 10 Biogeochemical Cycles
Which nutrient is not cycled through the atmosphere and stays only on ground level?
  1. Nitrogen
  2. Sulfur
  3. Carbon
  4. Phosphorus
Grade 10 Biogeochemical Cycles
How do plants get nitrogen if not from the atmosphere?
  1. nitrogen fixation
  2. consumption
  3. synthesis
  4. denitrification
Grade 10 Biogeochemical Cycles
How much water enters the hydrologic cycle?
  1. about 10% of ocean water
  2. 60% of pond water
  3. over 80% of evaporated water
  4. 25% of Earth's water
Grade 10 Biogeochemical Cycles
What draws water back to Earth?
  1. rain
  2. wind
  3. magnetism
  4. gravity
Grade 10 Biogeochemical Cycles
What does acid rain do?
  1. Creates winds
  2. Increases productivity of plants
  3. Blocks solar radiation
  4. Lowers pH of soils, lakes, and rivers
Grade 10 Biogeochemical Cycles
How much water will fall back as rain?
  1. 100%
  2. 15%
  3. 85%
  4. 52%
Grade 10 Biogeochemical Cycles
Why are nutrient cycles important to life?
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