The limestone caves at Carlsbad Cavern were formed by hydrogen-sulfide-rich (H2S) waters. This water moved through fractures and faults in the limestone and mixed with rainwater along the way. The mixture gave rise to a substance known as sulfuric acid (H2SO4). Sulfuric acid is able to dissolve limestone, eventually creating Carlsbad Cavern. The process of cave formation ended roughly four million years ago.
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Explanation:
<u>Renewable resources</u>
Renewable resources are the ones that can be replenished again and again i.e. they can't get exhausted after the use. On to other hand, non renewable energy resources can't be replenished again and again and can become exhausted after the usage .
For example ,
A) fossil fuel:
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Economically </u>fossil fuels are very cheap and hence widely used in economically poor areas.
Fossil fuels has the adverse effects on environment as their burning releases carbon dioxide in the atmosphere, which is the main reason for global warming.
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Benefits:</u> It is very cheap and hence anyone can afford it. Economies of poor countries are very much dependent on the
They are easily accessible and do not need much of technological advancement or heavy machinery.
<u>2. Solar energy:</u>
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Economical cost</u>: Economically it is very expensive and hence it's usage is limited to rich countries only. Silicon used in it is very expensive.
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Environmental: </u>It is environment friendly and so it is a clean source of energy.
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Benefits:
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In this world of drastically changing global climate, increasing pollution and with highly burdened energy resources, solar energy is turns out to be a Savior. It is pollution free and has unlimited abundance .
The errors the scientist made is by indicating that the heat of the cosmic background radiation is increasing. Rather, the CBR is actually ever weakening. As the radiation traverses the universe from its source of the big bang, even as the universe expands, its energy spreads even further and energy per unit measure decreases.
Answer:
The Pythagorean theorem is mathematical law. It states that the area of the square whose side is the hypotenuse (the side opposite the right angle) is equal to the sum of the areas of the squares on the other two sides. This theorem can be written as an equation relating the lengths of the legs a, b and the hypotenuse c, often called the Pythagorean equation: a²+b²=c².
