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Energy

The Energy category covers the description, definition, and use of all types of energy. Questions of a general nature can be put in the general Energy category. Other sub-categories exist for Fossil fuels, Nuclear energy, and renewables such as Wind, Solar, Hydro, Tidal, and Wave power.

24,905 Questions

What type of organism metabolizes food to make energy in the absence of oxygen?

Anaerobic organisms, such as certain bacteria and archaea, metabolize food to make energy in the absence of oxygen through a process called anaerobic respiration or fermentation. These organisms have adapted to survive in low-oxygen environments by using alternative electron acceptors to produce ATP.

Why is the transfer of energy in an ecosystem referred to as energy flow not energy cycling?

Entropy.

To "cycle" the energy would need to be reused, in reality the energy flows in from the outside and flows back out.

(If the system were energy blocked, then all the energy would convert to heat and thus be useless.)

Can you tell how close a storm is by the thunder?

Roughly. Count the seconds between the time you see the lightning and the time you hear the thunder. Since sound travels slower than light, the thunder LAGS the lightning more the farther it travels. The speed of light is so high that it's OK to assume that it reaches you in no time. So the lag between the lightning and the thunder is just the time it takes for the sound to reach you. On paper, all you'd need to know is the speed of sound. Unfortunately, it varies quite a bit depending on atmospheric conditions ... particularly temperature ... and is especially variable around thunderstorms. PLUS -- in the unstable, nonhomogeneous atmosphere around thunderstorms, the sound most likely travels a curved path to you, which is a bit longer than if it traveled straight. But let's ignore all of that, and use the time-lag of the thunder to roughly calculate how far away from you the lightning strike was. With the air temperature in the mid-70's, the speed of sound is about 1125 ft (343 m) per second. If you accurately count the seconds between the appearance of the lightning and the beginning of the sound of thunder, you can translate that number roughly into 1 mile of distance for every 4.7 seconds, or 1 kilometer of distance for every 2.9 seconds.

What is the source of heat in geothermal energy?

The source of heat in geothermal energy comes from the Earth's core, where heat is produced through the decay of radioactive elements. This heat is transferred to the Earth's crust, warming up underground water reservoirs that can be tapped for energy production.

Important materials from earth that living things need?

Living things on Earth need materials such as water, oxygen, carbon, and nitrogen to survive. These materials are essential for processes like respiration, photosynthesis, and building biological structures. They are interconnected in the planet's ecosystems to support life in various forms.

An organism cannot survive and reproduce in its environment without?

An organism cannot survive and reproduce in its environment without access to essential resources like food, water, shelter, and suitable mates. Additionally, they need mechanisms to protect themselves from predators and environmental stresses to ensure their survival and successful reproduction.

Is it possible to harness energy from the stars?

This doesn't seem very likely, unless you include our Sun in the definition of "stars". The energy density is simply too low for any practical use.

It is not that this is not POSSIBLE, it simply ain't PRACTICAL. It would require enormous collectors to get but a small amount of energy; there are much better ways to get energy.

Will fresh gasoline melt or dissolve the varnish formed by old gasoline?

Fresh gasoline may help soften or break down varnish formed by old gasoline, but it may not completely dissolve it. It's best to use a dedicated fuel system cleaner or consult a professional for more effective removal of varnish buildup.

What percentage of the earths water is freshwater?

Approximately 2.5% of Earth's water is freshwater, with the majority being found in glaciers and ice caps. Only a small fraction of this freshwater is readily accessible for human use.

If earth's angle of inclination was 0 how would insulation change in High Level Alberta?

If Earth's angle of inclination was 0 degrees, there would be no change in the insulation levels in High Level, Alberta. Insolation (incoming solar radiation) is more influenced by variations in solar angle, day length, and cloud cover than by Earth's axial tilt. Therefore, insulation levels in High Level would likely remain relatively constant throughout the year.

What kind of microorganisms are producers?

Producers in an ecosystem are typically plants, algae, and some bacteria that can perform photosynthesis to generate their own food using sunlight, water, and carbon dioxide. These organisms are vital as they form the base of the food chain by converting energy from sunlight into organic molecules that other organisms can consume.

Do machines decrease the amount of energy that is needed to do work?

Yes, machines can decrease the amount of energy needed to do work by leveraging principles of physics such as leverage, pulleys, and gears to multiply or redirect force. This allows machines to complete tasks with less human effort or energy input.

What is traditional energy?

Traditional energy refers to energy sources that have been used for many years, such as fossil fuels like coal, oil, and natural gas. These sources are non-renewable and can have negative environmental impacts due to greenhouse gas emissions and pollution.

Where are the most extensive geothermal features in the world?

The most extensive geothermal features in the world are found in places like Yellowstone National Park in the United States, New Zealand, Iceland, and the Great Rift Valley in Africa. These regions have a high concentration of geysers, hot springs, fumaroles, and other geothermal phenomena due to their location near tectonic plate boundaries.

How long do main sequence stars live?

A main sequence star is a star that is fusing hydrogen in its core. Stars leave the main sequence when they run out of hydrogen and start to fuse heavier elements (starting with helium and finishing with iron).

The length of time a star remains on the main sequence depends on how massive the star is. The larger the star the more gravity it has and the tighter this gravity squeezes the core - this makes the core hotter and brings the hydrogen atoms closer together so the fusion process proceeds more rapidly.

Thus big stars will only spend a few tens of millions of years on the main sequence while stars the size of our sun will spend ten thousand million years on the main sequence, and smaller stars (red dwarf stars) will spend trillions of years fusing hydrogen.

What do you think will happen if there is no heat and light?

Without heat and light, life on Earth would not be sustainable. Plants would not be able to photosynthesize to produce food, leading to ecosystem collapse. Additionally, extreme cold temperatures would make it difficult for organisms to survive, ultimately leading to mass extinction.

Why is the suns energy important to the earth?

it is important because the plants need it to grow, human beings use the solar energy in the sun to slow global warming and some animals eat plants but the carnvores eat animals that eats plants..

What is geo thermal energy used for?

Geothermal energy is used for generating electricity and heating buildings. It harnesses the heat stored beneath the Earth's surface to produce power through geothermal power plants or directly through geothermal heat pumps for heating and cooling systems.

What do all living things contain?

All living things contain cells, which are the basic building blocks of life. These cells contain genetic material, such as DNA, that carries instructions for how the organism functions. Living things also contain proteins, which are essential for carrying out various biological processes.

How do we get natural gas?

Natural Gas contains Carbon Dioxide, Hydrogen Sulfides, O2 Oxygen, Nitrogen, Arsenic, Mercury. For removal all these things from natural gas, Natural gas processing companies applied a gas treating and sweetening process by using gas processing equipment like Membrane System, Amine Plants, Oxygen Removal Plant, H2S Removal equipment to make it suitable for transport and sale.

To know more go to Blue Sky Midstream.

Is geothermal energy available in Ohio?

Yes, geothermal energy is available in Ohio. The state has geothermal resources that can be harnessed for heating and cooling purposes through ground source heat pumps. These systems use the stable temperature of the Earth to provide efficient and renewable energy for residential and commercial buildings.

How can water heated by the sun make electricity?

Water heated by the sun can be used to create electricity through a process called solar thermal power generation. In this process, the heated water is converted into steam, which drives turbines connected to generators to produce electricity. This is a renewable energy source that utilizes the heat from the sun to generate power.

What are the two primary energy sources that drive the food chain that feeds humans Why are two energy sources required when natural ecosystems normally only require one?

The two primary energy sources that drive the food chain are sunlight and organic matter. Sunlight is needed for photosynthesis to produce plant matter, which is then consumed by animals for energy. Organic matter is essential for decomposers to break down dead organisms, recycling nutrients back into the ecosystem. Having two energy sources allows for a more efficient transfer of energy between trophic levels in the food chain, ensuring a balanced and sustainable ecosystem for all organisms.

Where does almost all the energy on earth come from?

Almost all the energy on Earth ultimately comes from the sun. Solar energy is trapped by plants through photosynthesis, which forms the basis of the food chain. Additionally, solar energy drives weather patterns, ocean currents, and the water cycle.

Is one plus one always two?

Yes, unless you use some non-standard definition.