10 Questions
Where are CO2 and O2 found in the atmosphere?
CO2 and O2 are found in the atmosphere
What is the Law of conservation of matter?
Matter is neither created nor destroyed
Where are nutrients (elements) drawn up by plants from?
Nutrients are drawn up by plants from the soil
What is the source of transmission for diseases mentioned in the text?
Water
What process causes water vapor to cool and fall to earth as rain?
Condensation
Explain the biogeochemical/nutrient cycle and how nutrients flow between reservoirs.
The biogeochemical/nutrient cycle refers to the path that atoms take from the living (biotic) to the non-living (abiotic) world and back again. Nutrients (elements) can flow between reservoirs through a variety of pathways.
Describe the role of plants in the water cycle and how water is returned to the atmosphere.
Plants absorb water through their roots for photosynthesis and release water through transpiration. This water returns to the atmosphere.
What are the percentages of nitrogen gas (N2), oxygen gas (O2), and other gases in the atmosphere?
78% nitrogen gas (N2), 21% oxygen gas (O2), and 1% other gases (H2O, CO2, N2O).
Explain how inorganic gases cycle through living things and mention the processes involved.
Inorganic gases cycle through living things via processes such as photosynthesis and cellular respiration.
Describe the process of condensation and precipitation in the water cycle.
Water vapor cools and forms clouds through condensation, then falls to earth as rain in the process of precipitation.
Study Notes
Composition of the Atmosphere
- CO2 and O2 are found in the atmosphere, with O2 making up approximately 21% and CO2 making up a small percentage.
- The atmosphere is composed of 78% nitrogen gas (N2), 21% oxygen gas (O2), and small percentages of other gases.
Law of Conservation of Matter
- The Law of Conservation of Matter states that matter cannot be created or destroyed, only converted from one form to another.
Nutrient Uptake by Plants
- Plants draw up nutrients (elements) from the soil.
Disease Transmission
- The source of transmission for diseases is not specified in the text.
Water Cycle
- Evaporation and condensation cause water vapor to cool and fall to earth as rain.
Biogeochemical/Nutrient Cycle
- The biogeochemical/nutrient cycle involves the flow of nutrients between reservoirs, including the soil, atmosphere, and living organisms.
- Nutrients are drawn up by plants from the soil, used by living organisms, and eventually returned to the soil through decomposition.
Plant Role in Water Cycle
- Plants play a crucial role in the water cycle by releasing water vapor into the atmosphere through transpiration.
- Water is returned to the atmosphere through transpiration, allowing the water cycle to continue.
Gas Cycles
- Inorganic gases, such as CO2 and O2, cycle through living things through processes including photosynthesis and respiration.
- CO2 is taken up by plants during photosynthesis and released back into the atmosphere through respiration.
Condensation and Precipitation
- Condensation occurs when water vapor in the air cools and changes state from a gas to a liquid.
- Precipitation occurs when condensed water droplets in the air become too heavy to remain suspended, falling to the earth as rain.
Test your knowledge of biogeochemical/nutrient cycles with this quiz. Explore the flow of nutrients between biotic and abiotic reservoirs, and understand the law of conservation of matter. Sharpen your understanding of how atoms move through the living and non-living worlds with this quiz.
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