Answer:
The atmosphere
Explanation:
Most of the air travels through the atmosphere tho very little travels through the ocean from air vents, or scuba diver oxygen tanks.
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Evaporation
Explanation:
On a hot sunny day, the stage of water cycle most likely occurring is the evaporation stage.
At this stage, a phase change is occurring and liquid water is converted to water vapor in the atmosphere.
- Evaporation is an important aspect of the water cycle.
- It is preceded by precipitation and followed by condensation in the atmosphere.
- Water rises from the surface in gaseous forms and condenses in the atmosphere.
- This is because it is less dense than the surrounding atmosphere.
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Phase change brainly.com/question/1875234
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Answer: respiratory system
Explanation:
The respiratory system is the network of organs and tissues that help you breathe. It includes your airways, lungs and blood vessels. The muscles that power your lungs are also part of the respiratory system. These parts work together to move oxygen throughout the body and clean out waste gases like carbon dioxide
Monerans, now known as bacteria, have many beneficial effects. Some, such as the species that live in the intestines
Answer:
<em>The correct option is A) an increase in oxygen levels, which led to the extinction of many anaerobic organisms.</em>
Explanation:
Photosynthesis can be described as a process in which food (glucose) is produced by photosynthetic organisms by using carbon dioxide, water along with light energy from the sun. Oxygen is released as a by-product of this reaction. The process of photosynthesis initially allowed for oxygen gas to get accumulated in the air. This caused the rise of aerobic organisms who required oxygen for respiration. Before the photosynthesis organisms evolved, there was not enough oxygen gas on earth to support the life of aerobic organisms.