Asked By: Neil Richardson Date: created: Mar 29 2021

How much oxygen does a human need per year

Answered By: Stanley Gray Date: created: Apr 01 2021

A human breathes about 9.5 tonnes of air in a year, but oxygen only makes up about 23 per cent of that air, by mass, and we only extract a little over a third of the oxygen from each breath.

That works out to a total of about 740kg of oxygen per year..

Asked By: Curtis Hill Date: created: Nov 22 2021

Will the earth ever run out of water

Answered By: Raymond Hall Date: created: Nov 22 2021

While our planet as a whole may never run out of water, it’s important to remember that clean freshwater is not always available where and when humans need it. In fact, half of the world’s freshwater can be found in only six countries. More than a billion people live without enough safe, clean water.

Asked By: Hugh Moore Date: created: Mar 12 2022

What produces 70% of Earth’s oxygen

Answered By: Michael Richardson Date: created: Mar 12 2022

roughly one-third (28%) of the Earth’s oxygen but most (70%) of the oxygen in the atmosphere is produced by marine plants. The remaining 2 percent of Earth’s oxygen comes from other sources. The ocean produces oxygen through the plants (phytoplankton, kelp, and algal plankton) that live in it.

Asked By: Peter Griffin Date: created: Dec 27 2021

What country is the largest producer of oxygen

Answered By: Jaden Martinez Date: created: Dec 29 2021

Air Liquide and integrated energy and chemical company Sasol have today officially inaugurated the world’s largest oxygen (O2) production plant in South Africa.

Asked By: Ralph Adams Date: created: Apr 02 2021

What are the main sources of oxygen

Answered By: Nathan Watson Date: created: Apr 05 2021

Oxygen Supply Half of the world’s oxygen is produced via phytoplankton photosynthesis. The other half is produced via photosynthesis on land by trees, shrubs, grasses, and other plants. As green plants die and fall to the ground or sink to the ocean floor, a small fraction of their organic carbon is buried.

Asked By: Anthony Brooks Date: created: May 26 2021

Will the earth ever run out of oil

Answered By: Michael Wright Date: created: May 26 2021

Crude oil reserves are vanishing at a rate of more than 4 billion tonnes a year – so if we carry on as we are, our known oil deposits could run out in just over 53 years.

Asked By: Gilbert Johnson Date: created: Feb 14 2022

Where does most of the world’s oxygen come from

Answered By: Julian Barnes Date: created: Feb 16 2022

Scientists estimate that 50-80% of the oxygen production on Earth comes from the ocean. The majority of this production is from oceanic plankton — drifting plants, algae, and some bacteria that can photosynthesize.

Asked By: Jeremiah Thomas Date: created: Feb 17 2022

Which animal can live without oxygen

Answered By: Horace Moore Date: created: Feb 19 2022

In a study published Monday in the Proceedings of the National Academy of Sciences , researchers have now identified the first animal that doesn’t use oxygen to breathe: Henneguya salminicola, an 8-millimeter white parasite that infects the flesh of Chinook salmon.

Asked By: Ronald James Date: created: Oct 19 2021

Which forest produces the most oxygen

Answered By: David Perry Date: created: Oct 19 2021

Explain to students that rainforests are responsible for roughly one-third (28%) of the Earth’s oxygen but most (70%) of the oxygen in the atmosphere is produced by marine plants. The remaining 2 percent of Earth’s oxygen comes from other sources.

Asked By: Ethan Long Date: created: Nov 22 2021

Where do humans get oxygen from

Answered By: David Perry Date: created: Nov 25 2021

We get oxygen by breathing in fresh air, and we remove carbon dioxide from the body by breathing out stale air. But how does the breathing mechanism work? Air flows in via our mouth or nose. The air then follows the windpipe, which splits first into two bronchi: one for each lung.

Asked By: Cole White Date: created: Jun 01 2021

What is the source of oxygen in the atmosphere

Answered By: Bernard Barnes Date: created: Jun 01 2021

The answer is tiny organisms known as cyanobacteria, or blue-green algae. These microbes conduct photosynthesis: using sunshine, water and carbon dioxide to produce carbohydrates and, yes, oxygen.

Asked By: Bryan Kelly Date: created: Jun 09 2021

Where do we get oxygen from

Answered By: Jake Edwards Date: created: Jun 12 2021

Scientists agree that there’s oxygen from ocean plants in every breath we take. Most of this oxygen comes from tiny ocean plants – called phytoplankton – that live near the water’s surface and drift with the currents. Like all plants, they photosynthesize – that is, they use sunlight and carbon dioxide to make food.

Asked By: Howard Lee Date: created: Mar 16 2021

What are the symptoms of low oxygen at night

Answered By: Dominic Stewart Date: created: Mar 16 2021

Although they can vary from person to person, the most common hypoxia symptoms are:Changes in the color of your skin, ranging from blue to cherry red.Confusion.Cough.Fast heart rate.Rapid breathing.Shortness of breath.Slow heart rate.Sweating.More items…•

Asked By: Alfred Rodriguez Date: created: Dec 19 2021

Is it safe to sleep with plants in your bedroom

Answered By: Julian Jenkins Date: created: Dec 22 2021

Some people believe it may be harmful because plants may respire as humans do, emitting carbon dioxide at night as a reverse response to photosynthesis, but humans and pets produce more CO2 than plants do. … Making the answer to this question a resounding yes; plants are great for the bedroom.

Asked By: Philip Rodriguez Date: created: May 19 2021

Can the world run out of oxygen

Answered By: Christopher Johnson Date: created: May 21 2021

Most of the breathable oxygen in Earth’s atmosphere is supplied by plant life in a process called photosynthesis . We’ll run out of it if we cut down too much of the world’s forests and kill too much plant life in the oceans. … As long as we sustain Earth’s plant life in sufficient quantity, we won’t run out of oxygen.

Asked By: Christopher Clark Date: created: Apr 16 2021

What time of day is oxygen highest

Answered By: Devin Perez Date: created: Apr 17 2021

Even though there is an increase in carbon dioxide through the daytime on your block, oxygen is much more present at the beginning of the day.

Asked By: Jeffery Wilson Date: created: Apr 15 2021

Does oxygen level drop overnight

Answered By: Leonars Bell Date: created: Apr 16 2021

Everyone’s oxygen levels in the blood are lower during sleep, due to a mildly reduced level of breathing. Also, some alveoli drop out of use during sleep. If your waking oxygen saturation is greater than about 94 percent on room air, it is unlikely that your saturation during sleep will fall below 88 percent.

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