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- 1. Multiple Choice
Which is NOT part of the carbon cycle?
Transpiration
Respiration
Combustion
Decomposition
- 2. Multiple Choice
Which statement best describes the role of photosynthesis and respiration in the carbon cycle?
Respiration and photosynthesis both add carbon to the atmosphere
Respiration and photosynthesis both remove carbon from the atmosphere
Respiration adds carbon to the atmosphere, while photosynthesis removes it
Photosynthesis adds carbon to the atmosphere, while respiration removes it.
- 3. Multiple Choice
Other than carbon dioxide, what other gas is exchanged through photosynthesis and respiration
Nitrogen
Oxygen
Hydrogen
Both Nitrogen and Oxygen
- 4. Multiple Choice
Which process returns nitrogen to the air?
Nitrification
Nitrogen-Fixation
Assimilation
Denitrification
- 5. Multiple Choice
The nitrogen cycle cannot function without which organism?
Plants
Animals
Bacteria
Fungi
- 6. Multiple Choicesuccession that occurs in an area where soil is already presentecological successionprimary successionsecondary successionpioneer speciles
- 7. Multiple Choice
Primary succession could potentially start where?
In a forest that has their trees cut down
In a desert that caught on fire
In the mountains after a flood
In a plain field melted into rock after a volcanic explosion
- 8. Multiple Choice
How do pioneer species compare in primary and secondary succession?
primary starts with grass and weeds, secondary starts with mosses
primary starts with forest fire, secondary starts with volcano
primary starts with a volcano, secondary starts with a forest fire
Lichens and moss in primary, and grasses/ ferns in secondary
- 9. Multiple Choice
Which of the following is the best conclusion that can be made from this graph?atmospheric carbon dioxide levels have been decreasing since 1960Hawaii has a lot of carbon dioxidehumans have been working hard to decrease carbon dioxide levelsatmospheric carbon dioxide levels have increased steadily since 1960 - 10. Multiple Choice
The main human activity that releases greenhouse gases such as carbon dioxide is
using public transportation and there by reduce the affects of greenhouse gases.
burning fossil fuels
texting on cellphones
eating meat
- 11. Multiple Choice
What are some effects of climate change?
Glaciers and ice sheets melting
Seas rising
Storms getting stronger
All of them
- 12. Multiple ChoiceDoes deforestation contribute to global warming?No, trees aren't that importantSometimes because only the cutting down of Maple trees contributes to global warmingNo, deforestation adds methane to the atmosphere, which makes the Earth coolerYes; less trees means less CO2 is turned into oxygen.
- 13. Multiple Choice
In a dead zone, _________ levels are really low such that living organisms are not able survive.
nitrogen
oxygen
fertilizer
carbon dioxide
- 14. Multiple Choice
___________________ washes agricultural wastes, including animal wastes, fertilizers, and pesticides, into bodies of water, causing algae to grow.
Runoff
Peak flow
Groundwater
Municipal sewage
- 15. Multiple ChoiceWhen taken to a new habitat, non-native plants often threaten native plants of the new habitat. Why do they do this?Non-native plants are able to mutate rapidlyNon-native plants cause native animals to relocateNon-native plants are able to be used for medicineNon-native plants compete with native plants for resources
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