A cyclic change in the earth system repeats the same steps over and over, though not necessarily with the same results or at the same rate.
The Earth's climate cycles across a wide range of time scales, from years to decades to centuries to millennia. Different physical processes can start cycles at different scales. All of these layered systems and cycles working in concert determine the climate over any particular period.
Scientists examine Earth's cycles in an effort to understand how our world functions. Our planet's climates can vary as a result of modifications to Earth's cycles. Our understanding of how humans are influencing these cycles and how that can transform the world will grow as we learn more about them.
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It is widely accepted that the Earth’s interior is composed of several layers: the crust, the mantle and the core. Since the crust is readily accessible, scientists have been able to perform hands-on experiments to determine its composition; studies on the more distant mantle and core have more limited opportunities samples, so scientists also rely on analyses of seismic waves and gravity, as well as magnetic studies.
The taiga biome is found on more continents than the alpine biome. TRUE.
The taiga is the world's largest terrestrial biome. [ In North America it covers most of inland Canada and Alaska as well as parts of the extreme northern continental United States (northern Minnesota through the Upper Peninsula of Michigan to Upstate New York andnorthern New England) <span>and is known as the Northwoods.</span>
Answer:
B(A)100=B(B), the star A is 100 times fainter than star B.
Explanation:
Brightness of the star is defined by the formula,
Here, L is the luminosity and d is the distance.
For star A, the distance is 10d. The brightness of star A.
For star B, the distance is d. The brightness of star B.
Now according to the question luminosity of two stars is equal.
Therefore,
So, star B is 100 times brighter than star A.
Therefore the star A is 100 times fainter than star B.
