oxygen cycle, circulation of oxygen in various forms through nature. Free in the air and dissolved in water, oxygen is second only to nitrogen in abundance among uncombined elements in the atmosphere.
Plants and animals use oxygen to respire and return it to the air and water as carbon dioxide
(CO
2
).
How does the oxygen cycle support life on Earth?
The entire cycle can be summarized as, the oxygen cycle begins with the process of photosynthesis in the presence of sunlight, releases oxygen back into the atmosphere, which
humans and animals breathe in oxygen and breathe out carbon dioxide, and again linking back to the plants
.
How are cycles important to life?
Biogeochemical cycles
help explain how the planet conserves matter and uses energy
. The cycles move elements through ecosystems, so the transformation of things can happen. They are also important because they store elements and recycle them.
What is the importance of oxygen cycle class 9?
The oxygen cycle is a biological process that
helps maintain the level of oxygen through three main spheres of the earth
, including: Atmosphere (layer of gases presents above the earth's surface) Lithosphere (solid outer section along with the earth's crust) (ecosystem together build biosphere)
What happens in the oxygen cycle?
Oxygen cycle refers to
the movement of oxygen through the atmosphere (air), Biosphere (plants and animals) and the Lithosphere (the earth's crust)
. The oxygen cycle demonstrates how free oxygen is made available in each of these regions, as well as how it is used.
How do human activities affect the oxygen cycle?
The two main human activities that affect the carbon-oxygen cycle are
the burning of fossil fuels and the use and change of land
. The burning of fossil fuels removes carbon from coal, natural gas or other fuels and emits that carbon as CO2 into the atmosphere.
How does oxygen occur in nature explain oxygen cycle in nature?
Oxygen from the atmosphere is used up in three processes, namely combustion, respiration and in the formation of oxides of nitrogen
. Oxygen is returned to the atmosphere by the process called as photosynthesis. Was this answer helpful?
How do living things recycle oxygen in Earth's atmosphere?
Explain how living things recycle oxygen in Earth's atmosphere.
Photosynthetic autotrophs release oxygen into the atmosphere when they make food through photosynthesis
. All organisms, both autotrophs and heterotrophs, use oxygen from the atmosphere to break down glucose and make ATP during cellular respiration.
Why does cycling of materials in the ecosystem important?
The biogeochemical cycle is a good example of the cycling of material in the ecosystem. In this process,
nutrients are released by decomposers back to the environment
. This will help in maintaining the ecosystem. Hence, the importance of the ecosystem lies in both cycling of materials and the flow of energy.
Why are natural cycles important in the environment?
Natural cycles
balance and regulate Earth and its atmosphere
. Human activities can cause changes to these natural cycles. Life on Earth is well adapted to our planet's cycles.
What is the cycle of matter?
Cycles of matter are called
biogeochemical cycles
, because they include both biotic and abiotic components and processes. Components that hold matter for short periods of time are called exchange pools, and components that hold matter for long periods of time are called reservoirs.
What is oxygen cycle short answer?
Oxygen cycle refers to
the movement of oxygen through the atmosphere (air), Biosphere (plants and animals) and the Lithosphere (the earth's crust)
. The oxygen cycle demonstrates how free oxygen is made available in each of these regions, as well as how it is used.
What is the importance of carbon oxygen cycle in the environment and to the living organism?
The carbon cycle is vital to life on Earth. Nature tends to keep carbon levels balanced, meaning that the amount of carbon naturally released from reservoirs is equal to the amount that is naturally absorbed by reservoirs.
Maintaining this carbon balance allows the planet to remain hospitable for life
.
What are 5 facts about the oxygen cycle?
Interesting Oxygen Cycle Facts:
Oxygen is basically cycled from plants to animals and then back to plants
. Respiration is the process by which animals breathe in oxygen. When dead animals decompose, oxygen is used during the process. The process of rusting, also called oxidation, occurs when oxygen combines with metal.
How do humans impact this cycle?
Changes to the carbon cycle
Human activities have a tremendous impact on the carbon cycle.
Burning fossil fuels, changing land use, and using limestone to make concrete
all transfer significant quantities of carbon into the atmosphere.
Is one important human activity can decreases the oxygen levels present in the atmosphere?
Answer:
cutting down of trees
and burning of petroleum gases.
What are some ways that humans can reduce the effect they have on the cycling of carbon?
Reducing carbon emissions through low carbon technology –
prioritising renewable energy resources, recycling, minimising energy use and implementing energy conservation measures
. Agreed international caps, protocols and laws to stabilise, then reduce atmospheric carbon emissions.
How is oxygen used in nature?
Oxygen is
used by animals and plants in the respiration (breathing) process
. Tanks of oxygen are used in medicine to treat people with breathing problems. They are also used as life support for astronauts and scuba divers.
Why is oxygen necessary for most living things quizlet?
All organisms, both autotrophs and heterotrophs, use oxygen from the atmosphere
to break down glucose and make ATP during cellular respiration
. Through both pro- cesses together, living things recycle oxygen in Earth's atmosphere.
