answer 2 most likely, though there are other sources of plastics.
outer screw-in yoke
Alternating current is a flow of electrical energy in which the direction of electron flow reverses periodically. The mains electricity in your house is likely Alternating Current. The other form is Direct Current, where the direction of electron flow is in one direction only. Such as the flow from the batteries in your flashlight.
Nobody know the answer to that but I know that it will be great! it is really impossible to speculate about what might be. However, if you want some idea as to what to expect, then look at t.v. shows. Before the invention of cell phones, the idea appeared in the popular science fiction show Star Trek (hand held communicators). While some science fiction will always remain fiction, some inventors are hard at work to make fantasy into a reality!
If you are talking about operating costs, it would depend on the prices of the energy sources and the efficiencies of the heaters in question. You must compare the efficiency ratings of the two heaters in question and then calculate the cost of using them in your particular application. As far as unit purchase costs and installation costs, it depends on what units you are considering for installation. Right now, in North America, at least, and likely elsewhere as well, the cost of heating with fossil fuels is becoming more and more expensive than heating with electricity.
Biomass is likely to increase in importance as a fuel source as we continue to try to move towards renewable sources of energy.
Difficult to know what this means. Natural renewable energy sources are wind and solar mainly, tidal and waves may be developed as well. However these are more likely to replace coal burning than nuclear, I should think.
Future sources of renewable energy are likely to come from a combination of solar, wind, hydropower, and geothermal energy. These sources are abundant, sustainable, and have the potential to meet global energy demands while reducing carbon emissions. Investment in research and infrastructure development in these areas is crucial for transitioning to a more sustainable energy future.
It is difficult to predict with certainty, but renewable sources such as solar, wind, and hydropower are likely to play a significant role in the energy mix in 50 years. Advancements in technology may also lead to more efficient and widespread adoption of these renewable energy sources, along with potentially emerging technologies such as fusion power.
Ethanol, hydroelectricity, and solar power are renewable resources that are not likely to run out in the next 200 years.
A page author affiliated with a governmental agency, a reputable research institution, or an environmental organization is more likely to be an unbiased source of information about renewable energy. Look for authors who cite reputable sources and provide balanced perspectives on the topic.
People in the future will likely be using more renewable energy sources, such as solar, wind, and hydroelectric power, due to their sustainability and reduced environmental impact compared to fossil fuels. Advancements in technology and decreasing costs are making renewable energy more accessible and practical for widespread use.
Renewable energy is likely to keep increasing due to growing concerns about climate change, government support through policies and incentives, advancements in technology making renewables more cost-effective, and increased awareness among consumers and businesses about the benefits of using clean and sustainable sources of energy.
Burning fossil fuels such as coal and oil is most likely to have a negative effect on air quality. These sources release pollutants like sulfur dioxide, nitrogen oxides, and particulate matter, which can lead to smog, acid rain, and respiratory issues. Transitioning to cleaner energy sources like renewable energy can help improve air quality.
The first renewable energy source used by humans was likely wood, as it was used for heating and cooking thousands of years ago.
Fossil fuels. This includes petroleum and coal.
The use of renewable energy is likely to keep increasing due to growing concerns about climate change, decreasing costs of renewable technologies, and government incentives and policies promoting clean energy. Additionally, advancements in renewable technology and energy storage are making renewables more reliable and efficient.