Life on Earth would most likely be less advanced if there were no magnetic field.
Answer the following statement true (T) or false (F)
True
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How did the underlying geology contribute to the Gros Ventre Landslide of 1925?
A) Rains saturated the sandstone and clay that make up the slope. B) Creep weakened the sandstone making up the slope. C) Vegetation was removed from the slope. D) The river that flowed through the valley dissolved the limestone.
The structure of chemotactic cytokines includes which of the following?
A) four helical segments B) only b-pleated sheet C) both a-helix and b-pleated sheet D) four cysteine residues which form two disulfide bridges
Probably the single most characteristic feature of the Precambrian is its great abundance of fossil evidence
Indicate whether the statement is true or false
If a lava flow completely denudes a mountain, leaving only bare rock, what type of succession will follow?
A) Primary B) Tertiary C) Quaternary D) Secondary