1.

Study the given flow chart. Which of the following are the correct examples of W, X, Y and Z?

A. W- Ulothrix, X-Marsilea, Y-Selaginella, Z-Cycas
B. W-Riccia, X-Marsilea, Y-Cycas, Z-Ipomoea
C.  Earth's magnetic field
D. W-Spirogyra, X-Dryopteris, Y-Funaria, Z-Pinus
Answer» C.  Earth's magnetic field


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