What two landforms can occur when acids in groundwater weather limestone rocks underground?

During the devonian period animals that could live in land began to evolve. these animals still spent part of thier lives in the water what were these animals called

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Which objective lens provides the least total magnification?

Which is likely to be more frequently found in rocks: fossils of very old sea creatures or very old land creatures?

Which of the following is true about ecosystems?

1. When governments seek a favorable trade balance, they want A to raise taxes on exports B imports to equal exports C to export more than they import D to import more than they export

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3) Which of the following may move and cause an earthquake to occur? A: Asthenosphere B: Lithosphere C: Plate D: Mantle

What statement best describes the relationship between power and authority? A. Authority is a type of power used only in democracies. B. Authority is the ability to use power legitimately. C.