객관식
Imagine you’re tracking a water molecule frozen in snow on land. Which of the following is a possible path it could take to eventually end up as part of the ocean?
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목차
- 1. Introduction to Biology2h 17m
- 2. Chemistry of Life7h 30m
- Atoms - Smallest Unit of Matter58m
- Isotopes36m
- Introduction to Chemical Bonding21m
- Covalent Bonds40m
- Noncovalent Bonds5m
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23. Ecology
Biogeochemical Cycles
객관식
Which of the following statements is true?
A
Unlike nitrogen, carbon, and water, the atmosphere is not a significant reservoir of phosphorus.
B
Sedimentary rock is one of the largest reservoirs of phosphorus.
C
Phosphorus is essential to ecosystems as it’s a major component of nucleic acids & ATP.
D
All of the above are true.
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