Natural gas is solar energy that was photosynthesized by plants long ago, stored in a physical form, and formed after a long period of geological evolution.
Wind power is caused by air flow caused by the uneven distribution of solar energy on the earth, forming wind and generating wind power.
On the one hand, hydropower contains wind energy factors, on the other hand, it is also due to uneven solar irradiation which causes convection due to temperature differences of the water. In addition, tidal phenomena are generated. water energy, which can also be indirectly considered solar energy.
The origin of bioenergy and natural gas is that natural gas itself is a kind of bioenergy.
Energy on earth comes from the sun: A geothermal energy B tidal energy C water energy D nuclear energy
The energy currently used by humans is linked to solar radiation. Energy sources include solar water heaters, coal and oil.
1. Solar water heater
Solar water heater is an important manifestation of human beings' utilization of solar radiation energy. Through the collector, the sun's rays are collected and converted into thermal energy, then the thermal energy is stored in the water tank for people to use when needed.
This type of equipment not only provides humans with abundant hot water resources, but its non-polluting, renewable, economical and practical characteristics make solar water heaters a widely used energy device in society of today. This not only reduces the consumption of fossil fuels, but also reduces environmental pollution, fully embodying thedevelopment and use by human beings of solar radiation energy.
With the development of science and technology, the efficiency and use experience of solar water heaters are also constantly improving, bringing more convenience and comfort to human life .
2. Coal
Coal is a fossil fuel, generally referring to a black rock with a carbon content of more than 50% that is formed underground and mined. It is one of the world's major sources of energy and is primarily used for electricity generation, industrial coal use, and residential heating. Coal formation and mining are closely linked to factors such as geological structure, climate and biomass.
The process of coal formation required millions of years of deposition and burial. It is a non-renewable resource. BeingGiven that the extraction and use of coal can have negative impacts on the environment and ecosystems, such as mining accidents, vegetation destruction and air pollution, the growing population demand for clean and renewable energy has also promoted clean coal and diversified energy development.
3. Petroleum
Petroleum is a mixture of organic compounds, generally referring to fossil fuels extracted from the earth's crust and which are liquid at room temperature. It is one of the main pillars of modern industrial and economic development and is widely used for various purposes such as fuels, lubricants, solvents, fertilizers, plastics and rubber, etc.
Oil extraction and processing requires a large amount of technology and equipment, and the petroleum industry has always been considered an intechnology and capital intensive industry. The production and consumption of oil is very large globally, but due to the limited and non-renewable nature of oil resources, people have started to explore and develop clean and renewable energy sources to replace the oil.
Energy resources in nature are generally divided into three categories according to their formation and sources:
1. Energy from solar radiation Most of energy used by man. including the energy of past and present solar radiation, called solar energy, such as: solar energy, bioenergy, coal, oil, natural gas, hydroelectric energy, wind energy, etc.
2. Energy from within the earth. Such as: geothermal energy, nuclear energy, etc.
3. Tidal energy formed by the gravitational attraction of the moon and thesun on the earth.
B The moon has a greater influence
Choose C
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