How did plant and animal fossils influence the theory of continental drift?
What will be an ideal response?
Answer: Similar plant and animal fossils found in both South America and Africa provided evidence that the two continents had at one time been connected together. This is especially true of the fossil plant Glossopteris, which had very large seeds, too large to be distributed by winds.
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You could use two parallel wires to move objects 1 and 2 apart if each wire is embedded in its own object and if 
A. one wire carries a current and the other wire has zero current. B. the currents in the wires are in the same direction. C. the currents in the wires are in opposite directions.
As frequency is varied in an RLC series circuit, resonance is reached when
A. the voltages VR, VL and VC all become equal. B. the voltages VL and VC become zero. C. the voltage VR becomes equal to the source voltage. D. None of the choices are correct.
A sound wave and a light wave have identical
A) speeds. B) wavelengths. C) frequencies. D) all of the above E) none of the above
Primordial nucleosynthesis implies the Big Bang makes all elements up to iron
Indicate whether the statement is true or false