The PERIMETER of the equator cycle is about 40,000Km. The Greenwich cycle is a bit shorter as the earth is a bit an ellipsoid. About 37,000Km by Google Maps. The distance on the envelope between ANY antipodes (=opposite points on the axis, I won't use "diameter" to avoid confusion) is HALF the perimeter (If you walk the whole perimeter long, you'd get to the same point, of course). The distance through Earth is
D=P/Pi=37,000Km/Pi=about11777Km
Explanation:
Except in the crust, the interior of the Earth cannot be studied by drilling holes to take samples. Instead, scientists map the interior by watching how seismic waves from earthquakes are bent, reflected, sped up, or delayed by the various layers.
The answer is: [A]:
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"A groundwater storage area between two impermeable layers of rock."
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Faster than any<span> country </span>except<span> the United States. In 1500, the </span>Brazilian<span> population </span>was<span> the same </span>as<span> in Portugal. Now it </span>is<span> 17 times </span>as<span> big. The creation of such a large geopolitical entity </span>is<span> ... try to decide whether and </span>how<span> far </span>Brazil has<span> underexploited its potential for growth of income ... </span>economic<span> policy</span>changed<span> drastically.</span>
The area referred to in the question is missing but taking into account the area of the world as a whole, the answer would be A)Atlantic and Pacific.
