b. At higher elevations, it would take longer to hard boil an egg, because there is a lower boiling point, so the egg is boiling in water at a lower temperature.
Explanation:
The best answer from the given choices is that, at higher elevations, it would take longer to hard boil an egg, because there is a lower boiling point,
so the egg is boiling in water at a lower temperature.
- Boiling point is simply the pressure at which the vapor pressure of a liquid is equal to the atmospheric pressure.
- At higher elevations, the atmospheric pressure is low and it would require little heat to boil water and turn it into vapor.
- To hard boil an egg, we need elevated temperature.
- But since water to use hard boiling has an unusually low temperature, it becomes more difficult since much of the water turns into vapor.
- This is why at higher elevations, it takes a longer time to hard boil eggs.
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Answer:
Infrastructures affected include those who are most vulnerable to the weather conditions such as Power lines and road and bridge. The harsh conditions damages these infrastructures. A damage in any of them usually cause a ripple effect and also affects others indirectly too.
This affects the economy by a steady decline being noticed because the economy is usually run on these infrastructures.
The concept of Peak Oil was first developed in the 1950's by the geologist M. King Hubert.
The correct option is renewable resources make cleaner energy.
Renewable energy, often known as clean energy, comes from naturally regenerated sources or processes. Sunlight and wind, for example, continue to shine and blow, even if their availability is dependent on time and weather.
Renewable energy is energy generated from naturally replenished sources such as the sun and wind. Renewable energy may be used to generate electricity, heat and cool buildings, and power vehicles.
A renewable resource is one that can regenerate fast and is replaceable, whereas a nonrenewable resource is one that cannot be renewed by natural resources.
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Answer:
7) The Cretaceous period and it lasted for 80 million years
8) The Cenozoic era for 65 million years
9) 4.5 billion years ago
10) It began 252.2 million years ago
11) It ended 66 million years ago
12) About 190 million years
Explanation:
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