<span>Disadvantages:
One of the main disadvantages is the initial cost of the equipment used
to harness the suns energy. Solar energy technologies still remain a
costly alternative to the use of readily available fossil fuel
technologies. As the price of solar panels decreases, we are likely to
see an increase in the use of solar cells to generate electricity.
A solar energy installation requires a large area for the system to be
efficient in providing a source of electricity. This may be a
disadvantage in areas where space is short, or expensive (such as inner
cities).
Pollution can be a disadvantage to solar panels, as pollution can
degrade the efficiency of photovoltaic cells. Clouds also provide the
same effect, as they can reduce the energy of the suns rays. This
certain disadvantage is more of an issue with older solar components, as
newer designs integrate technologies to overcome the worst of these
effects.
Solar energy is only useful when the sun is shining. During the night,
your expensive solar equipment will be useless, however the use of solar
battery chargers can help to reduce the effects of this disadvantage.
The location of solar panels can affect performance, due to possible obstructions from the surrounding buildings or landscape.
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Answer:
lighter atoms, energy, neutrons.
Explanation:
An atom is divided into two lighter atoms when passing through a nuclear fission. This process also generates some neutrons and a release of energy, that is, the kinetic energy of the nucleus and gamma rays. Therefore, the two resulting nuclei are called fission products.
Answer:
Explanation:
In Ptolemy's geocentric model of the universe, the Sun, the Moon, and each planet orbit a stationary Earth. He had them in circle orbits.
Galileo's model showed that the sun was the centre of the universe. That everything orbited around the earth. He also saw that they we in elliptical orbits.
Galileo proved Ptolemy wrong because Ptolemy said that everything orbited the earth and they orbited in circle but they orbit in ovals (elliptical) and that they orbit the sun.
There is about equal amounts of each.