University:
College
Course:
College Biochemistry
Academic year:

2023
Views:

35

Pages:

4
Author:

Pedro Dickerson

Biogeochemical Cycle 1. The water cycle, carbon cycle, nitrogen cycle, and phosphorus cycles are all examples of A Biological Cycles B Biogeochemical Cycles C Biochemical Cycles D Chemical Cycles 2. What is the most abundant gas in the atmosphere? A Helium B Nitrogen C Carbon Dioxide D Oxygen 3. The largest source for the water cycle is... A Atmosphere B Hydrosphere C Biosphere D Lithosphere 4. The is the largest source for the nitrogen cycle is A Biosphere B Atmosphere C Lithosphere D Hydrosphere 5. The largest sources of CO2 for the carbon cycle is A Biosphere B Atmosphere C Lithosphere D Hydrosphere 6. The largest source for the phosphorus cycle is A Biosphere B Hydrosphere ฀ C Lithosphere D Atmosphere 7. The process in which plants lose water through their leaves is called ______. A Transpiration B Evaporation C Condensation D Exhaling 8. What is one way that carbon can be removed from the atmosphere? A decomposition B combustion C photosynthesis D cellular respiration 9. Carbon gets into the lithosphere by A condensation B decaying plants C photosynthesis D combustion 10. The burning of coal puts which compound into atmosphere? A H20 B CO2 C PO4 D N2 11. Bacteria found involved in the nitrogen cycle are found ____ A In the soil B In the atmosphere C on plant leaves D In dead things 12. Nitrogen is a limiting nutrient because____ ANitrogen in the atmosphere is in a form that is not usable by plants BThere is very little nitrogen in the atmosphere C Nitrogen is only found in soil and rocks. DThere is too much nitrogen in the atmosphere 13. What happens in denitrification? ANitrogen in the soil is broken down and released into the atmosphere. BNitrogen in the atmosphere is converted to a usable form in the soil. 14. During nitrogen fixation, bacteria_____. A convert N2 gas to NH4 B convert nitrates and nitrites to N2 gas C convert nitrates and nitrites to NH4 D convert NH4 to N2 15. The erosion of rocks from running water carries which of the following elements hydrosphere? A Nitrogen B Carbon C Phosphorus D Hydrogen 16. Which of the following describes how carbon may be returned to the lithosphere (soil, land, etc)? A Decay of dead leaves B condensation C precipitation D Nitrogen-fixation 17. Which of the following refers to the process in which from plants give off water from their leaves? A condensation B evaporation C transpiration D combustion 18. Phosphorus is the only cycle that mainly involves the _________ A Biosphere B Lithosphere C Hydrosphere D Atmosphere 19. Which term refers to the process in which water changes from a liquid to gas? A evaporation B condensation C decomposition D transpiration 20. Precipitation involves____ AWater in the atmosphere that may be in the form as a liquid or gas BWater in the hydrosphere that may be in form as a liquid or gas CWater in the hydrosphere that may be in the form as a liquid or solid DWater in the atmosphere that may be in the form as a liquid or solid