SSC
PHYSICAL GEOGRAPHY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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100 Years
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Hundreds of Years
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Thousands of Years
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Millions of Years
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Detailed explanation-1: -Because tectonic plates move very slowly-only a few centimeters per year, on average-it takes a long time to observe changes. Scientists have found that the planet’s continents will likely again be joined together in about 250 million years.
Detailed explanation-2: -Earth’s tectonic plates may have taken as long as 1 billion years to form, researchers report today in Nature1. The plates-interlocking slabs of crust that float on Earth’s viscous upper mantle-were created by a process similar to the subduction seen today when one plate dives below another, the report says.
Detailed explanation-3: -Pangaea existed about 240 million years ago. By about 200 million years ago, this supercontinent began breaking up. Over millions of years, Pangaea separated into pieces that moved away from one another. These pieces slowly assumed their positions as the continent we recognize today.