Mach is used for high speed, Angstrom for wavelength, Pascal for pressure, and Joule for energy. Option B (“High speed-Angstrom, wavelength-Mach, pressure-Joule, energy-Pascal”) is incorrect because it represents a different unit, dimension, instrument, quantity or measurement relationship from the one asked. Option C (“High speed-Pascal, wavelength-Joule, pressure-Mach, energy-Angstrom”) is incorrect because it represents a different unit, dimension, instrument, quantity or measurement relationship from the one asked. Option D (“High speed-Joule, wavelength-Pascal, pressure-Angstrom, energy-Mach”) is incorrect because it represents a different unit, dimension, instrument, quantity or measurement relationship from the one asked. Match the quantity with its definition, SI unit and dimension. This keeps the selected index, answer and explanation consistent.is correct. Option B, “High speed-Angstrom, wavelength-Mach, pressure-Joule, energy-Pascal”, is incorrect for this question because it does not match the precise location, process, landform, climatic feature or geographical relationship identified by the evidence. Option C, “High speed-Pascal, wavelength-Joule, pressure-Mach, energy-Angstrom”, is incorrect for this question because it does not match the precise location, process, landform, climatic feature or geographical relationship identified by the evidence. Option D, “High speed-Joule, wavelength-Pascal, pressure-Angstrom, energy-Mach”, is incorrect for this question because it does not match the precise location, process, landform, climatic feature or geographical relationship identified by the evidence. The central concept is that geographical facts must be evaluated with their location, scale, process and time frame. Then match the defining characteristic. This distinction removes the most common confusion and keeps the selected answer, correct index and explanation fully aligned.
