Nitrogen.
nitrogen
Most organisms are able to take oxygen from the atmosphere through respiration. Plants are able to take in carbon dioxide from the atmosphere during photosynthesis.
The nitrogen is about 78% in air but living organisms can not take from air.
Most living things are unable to take nitrogen directly from the biosphere in its gaseous form (N₂). Although nitrogen is abundant in the atmosphere, organisms typically require it in a fixed form, such as ammonia (NH₃) or nitrate (NO₃⁻), which can be utilized for biological processes like protein synthesis. Certain bacteria and archaea can convert atmospheric nitrogen into these usable forms through a process called nitrogen fixation, making it accessible to other organisms in the ecosystem.
Plants and other photosynthetic organisms such as algae take in ________ from the atmosphere and combine it with water and energy from the sun to form sugar.
No, animals do not take up most of the oxygen on Earth. The majority of Earth's oxygen comes from photosynthesis by plants, algae, and cyanobacteria. These organisms release oxygen into the atmosphere as a byproduct of their metabolic processes.
The most significant source of oxygen in Earth's atmosphere is photosynthesis by plants, algae, and cyanobacteria. These organisms take in carbon dioxide and water, using sunlight to produce oxygen as a byproduct. This process has been crucial in maintaining the balance of oxygen and carbon dioxide in our atmosphere for billions of years.
No organisms make "air." Air is the natural atmosphere of the earth. Most of it is nitrogen. Most plants take in carbon-dioxide, and produce oxygen. Most animals take in oxygen, and produce carbon dioxide.
Most human activities take place in the layer of the atmosphere known as the troposphere. This is the lowest part of the atmosphere of the earth.
The layer in the atmosphere where weather occurs the most is the troposphere. This is the lowest layer of the atmosphere and it is where most weather phenomena, such as clouds, rain, and storms, take place.
Oxygen is released into the atmosphere during photosynthesis when plants use sunlight to convert carbon dioxide and water into glucose and oxygen. During cellular respiration, organisms take in oxygen and release carbon dioxide into the atmosphere.
It would be impossible for oxygen requiring organisms to exist before photosynthetic organisms because there was not oxygen in the atmosphere for these organisms to breathe. Photosynthetic organisms take carbon dioxide and water in and create oxygen as waste. Before these photosynthetic organisms existed there was not enough or any oxygen in the atmosphere for organisms requiring oxygen to survive.