Consider the following statements regarding NMR spectroscopy. Determine whether each each statement is true or false. 1. The TMS protons are highly shielded and appear downfield of other organic protons in an NMR spectrum.
2. NMR spectroscopy requires a nucleus having non-zero electron spin.
3. A typical value for the chemical shift of methyl protons is 1.2.
4. Spin-spin splitting arises from interactions of one proton with a neighboring nucleus.

answer: option (4) is the correct answer.

explanation:

areas which are at low altitudes and near the equator tend to receive direct sunlight from the sun. hence, heat energy or radiations from the sun make these areas warmer and they have warmest water.

whereas areas which are at high altitudes and away from the equator do no receive direct sunlight. hence, no direct contact from the sun makes these regions colder and thus, they have colder water.

thus, we can conclude that the statement areas at low latitudes near the equator have the warmest water because they receive the most direct sunlight best explains the relationship between an area's geography and the temperature of its surface water.

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explanation:

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