When water is heated or when the temperature increases, it can turn into water vapor and become airborne. Water vapor in the air can turn into fog, dew, rain, snow, hail, etc. When the temperature is too low, water can freeze directly and turn into ice. Water can also be transformed into hydrogen and oxygen, etc.
Water (chemical formula: H?O) is an inorganic substance composed of hydrogen and oxygen and is not toxic. It is a colorless and odorless transparent liquid at normal temperature and pressure, known as the source of human life.
Good things water does:
1. Water can quench our thirst, cook food and wash clothes.
2. Water can irrigate crops and guarantee farmers a good harvest.
3. Water is the main component of plants and animals. Water supports various plants and animals, includinghuman life, and gives color to the earth.
4. Water can generate electricity, you can write under bright lights, you can also watch TV and play on the computer.
Bad things water does:
1. Floods caused by rivers overflowing their banks can destroy homes, make people homeless, submerge crops and even render thousands homeless. their lives, causing enormous disasters.
2. Water turns into rain and snow, especially after heavy rains and snowstorms, making roads slippery, making walking difficult for pedestrians, and even causing traffic accidents.
How should we manage the rational use of water:
1. People can build water conservation projects so that water can be used well for irrigating crops etc. Disobedient rivers do notwill no longer. overflow and provide a safe living environment for people.
2. Fresh water resources on earth are very deep. We should start from a young age and develop the habit of saving water on time, and washing our feet with it. wash face, flush toilet, use rice wash water and boil tap water to wash dishes, use tap water, dish water, bath water, etc.
I need water. What can I do if I drink water?
Water is the source of life. Without water, human life will be threatened. We see that water is essential to us humans. So, are there other uses for water?
Let’s try to list 30 uses of water!
1. The most basic use of water is for drinking. People need to drink water, plants also need to drink water and other animals havealso need to drink water.
2. Water is often used to wash clothes.
3. Water is often used for washing vegetables and cooking.
4. Water is often used for flushing in the bathroom, such as flushing toilets, washing mops, etc.
5. When planting, water is needed for irrigation.
6. When children draw gouache paintings, water is naturally indispensable for mixing paints, so water can be used to mix paints for them. children painting.
7. On the construction site, a group of people are mixing cement. Cement is inseparable from water. The water used to mix cement is a treasure on the job site.
8. In public baths, people used water to wash dirt from their bodies. The sound of running water made the bavery happy igneurs. Water used for bathing can make people instantly refreshed and happy!
9. In the 1950s and 1960s, there was a serious water shortage in Lin County, Xinxiang, Henan. People used water for multiple purposes and were reluctant to waste a drop. water. Because of this water, local people, led by the secretary of the county party committee, took the initiative to register for the construction of a Red Flag canal. The spiritual power that water brings to people is extremely powerful. It can make people fearless and overcome all difficulties and dangers.
10. Urban development is inseparable from greening, and green plants on both sides of urban roads naturally need water for irrigation. Hard-working gardeners will water the water in time, and the greening of the city will make people feel relaxedus and happy to walk the streets.
11. Water can be used to produce electricity.
12. Water sports and entertainment, such as water surfing.
13. Used industrially for cooling, heating, dissolving, cleaning, synthesizing, etc.
14. Used for breeding in agriculture.
15. There are many places of interest in nature that are inseparable from water. The Yellow River, the mother river of China, and the Yangtze River, the largest river in China. , are astonishing in their magnificence and splendor.
16. Water can be used to regulate the climate.
17. Maritime transport is inseparable from water.
18. Water can be used to put out fires.
19. Water can be used for cutting, such as water jet.
20. Water can be used as readbrilliant.
21. Water can keep vegetables fresh.
22. Hydroponic plants.
23. For organisms living in seawater, water is the vector of their life.
24. Too much water will cause flooding, submerging crops, houses, etc., so people will also do flood prevention work.
25. When it is cold in winter, the traditional method is to fill a glass bottle with hot water and place it under the quilt to keep warm . Nowadays, various means of heating have emerged, such as heaters, electric electric blankets, etc. The water is heated and then transfers heat, providing warmth to people.
26. Snow in winter is basically water, but the visual treat it brings to people is incredible!
27. When the weather gets cold, water coolsnse naturally on ice. Entertainment on ice has become a source of happiness for people.
28. With ice, people can make various ice sculptures to display. With exquisite carvings and transparent icicles, people can have a treat for their eyes.
29. Water can be used to make fountains With the liveliness of fountains in a corner of a square, a corner of a park, a tourist attraction, etc., people. lives become more colorful.
30. The blue ocean is fascinating. There are water, fish and various marine species in the aquarium. We can see the beauty of nature around us.
Water is the best gift that nature has given us. We must cherish water resources and improve them for our use. Our lives are different because of water, and our world is more colorful because of water.
Water and wind energy areAre they renewable energy?
I need water. I can drink water. Water is an important element of all living things. Water makes up 70% of the body weight of the human body; Water is an essential substance for maintaining life. Water can also serve functions such as hydroelectric power generation, navigation, bamboo transportation, climate regulation, and environmental beautification. It is used for daily drinking, nourishing all things, used industrially for cooling, heating, dissolving, cleaning and synthesizing, agricultural irrigation and animal husbandry, and can also be used to develop water sports and entertainment.
Hydropower and wind power are renewable energy sources.
Renewable energy
1. Solar energy: Directly from solar radiation. The objectThe main purpose is to provide heat and electrical energy.
2. Bioenergy: Green plants convert solar energy into chemical energy through photosynthesis, which is stored in the body, can flow in one direction along the food chain, and is finally converted to heat energy and lost. Biogas is obtained by combustion and anaerobic fermentation to obtain energy.
3. Wind Energy: Energy is provided by solar radiation. Due to uneven cold and heat, differences in atmospheric pressure occur, leading to horizontal movement of air - the formation of wind. Energy is mainly obtained from wind turbines.
4. Water Energy: Energy is provided by solar radiation, creating a water cycle. Warm, moist ocean air rises when heated, and solar energy is converted to potential energy when precipitation forms.is lying. In high mountains, water flows downward. Potential energy is converted into kinetic energy, which is the energy of water. Energy is obtained mainly through hydroelectric generators.
5. Ocean Energy: The energy contained in the movements of sea water, including tides, waves, ocean currents, etc. is also inexhaustible. Tidal energy comes primarily from the gravity of celestial bodies such as the moon and sun, while the energy of ocean waves and currents is primarily affected by wind. It mainly produces electricity using the kinetic energy of the tides.
6. Geothermal energy: comes from the decay of radioactive elements inside the earth. Can be used for geothermal power generation and heating.
7. Hydrogen Energy: Obtain energy through combustion or fuel cells.
8. Energy nnuclear: successfulNuclear power plants to obtain energy.
Detailed information:
Characteristics of renewable energies:
Under the specific spatio-temporal conditions of nature at this stage, renewable natural resources can continue to regenerate, multiply and grow, maintain or increase their reserves and rely on sources to regenerate.
Once the source of the species disappears, the resource can no longer be regenerated. This requires scientific and rational use and protection of the source of the species before regeneration is possible and the “inexhaustible” is possible. Soil is a renewable resource because its fertility can be continually renewed through artificial measures and natural processes.
Renewable energy generally refers to a variety of sourceses of inexhaustible energy. Strictly speaking, it is a source of energy that will not be exhausted during human life. Renewable energy does not include currently limited energy sources such as fossil fuels and nuclear power.
Most renewable energy is actually solar energy storage. Renewable does not mean providing energy for ten years, but for hundreds or even thousands of years.