Hydrogen bonds can only occur between certain bases.
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Answer: 0.69 m/ mile.
Explanation:
The altitude gradient between two cities X and Y =
Given: Two cities are separated by 200 miles.
City X has an altitude of 122 meters.
City Y has an altitude of 260 meters.
The altitude gradient between two cities X and Y =
Hence, the altitude gradient between the two cites = 0.69 m/ mile.
Answer:
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