4/Advantages:+Saving electricity

                       +Low Maintenance Costs

                       +Weather Dependent

Disadvantages:+Uses a Lot of Space

                        +Associated with Pollution

                        +Solar Energy Storage Is Expensive

5/In the world, there are many country using the solar powel. Because, solar power is really cheap and it help us saving the another power, such as: electricity,... The solar power is good but the solar panels have taken a lots of space and some kind of this is associated with pollution.

Đây là lợi ích nek:

1. Renewable: solar energy is a renewable form of energy. The sun is not depleted when humans harness its energy.

2. Green: solar energy does not release harmful greenhouse gases or other noxious substances.

3. Reliable: some people do not think that solar energy is reliable. However, solar panels can store solar energy for use during days when the sun is obscured by clouds.

4. Cheap: once solar panels are installed, solar energy is very cost effective to run.

5. A sign of progress: solar panels are a sign of scientific and ecological progress.

6. Perfect for hot countries: countries that are very sunny are perfect candidates for using solar energy.

7. Versatile: once converted into electricity, solar energy can be used for anything, including powering homes.

Bài làm:Solar energy is radiant light and heat from the Sun that is harnessed using a range of ever-evolving technologies such as solar heating, photovoltaics, solar thermal energy, solar architecture, molten salt power plants and artificial photosynthesis.

It is an important source of renewable energyand its technologies are broadly characterized as either passive solar or active solardepending on how they capture and distribute solar energy or convert it into solar power. Active solar techniques include the use of photovoltaic systems, concentrated solar power and solar water heating to harness the energy. Passive solar techniques include orienting a building to the Sun, selecting materials with favorable thermal mass or light-dispersing properties, and designing spaces that naturally circulate air.