If Earth had twice as much oxygen, combustion reactions would occur at a faster rate, leading to more frequent and intense fires. Additionally, organisms would likely adapt to the higher oxygen levels over time, potentially resulting in evolutionary changes in both plant and animal species. However, too much oxygen could also pose a fire hazard and have negative impacts on human health due to increased oxidative stress.
If there were no oxygen on Earth, most living organisms, including humans, would not be able to survive as oxygen is essential for respiration. Without oxygen, aerobic organisms would suffocate and eventually die. The atmosphere would likely become unbreathable, leading to widespread extinction of life.
Cutting down half of the trees on Earth would reduce the amount of oxygen produced through photosynthesis, potentially leading to a decrease in atmospheric oxygen levels. However, the impact on overall oxygen levels would be mitigated by the fact that trees make up only a portion of the Earth's oxygen-producing plants. Other plants, as well as oceans and other sources, also contribute to the atmospheric oxygen supply.
Without oxygen, most living organisms, including humans, would not be able to survive. The process of respiration, which is essential for generating energy, relies on oxygen. Without it, there would be widespread death and extinction.
If plants took in the same amount of oxygen as they give out during the day, life on Earth would be significantly impacted. Oxygen levels would decrease rapidly, leading to hypoxia in animals and humans. This would disrupt ecosystems, causing widespread environmental and health problems.
If oxygen were not available, most multicellular organisms, including humans, would not be able to survive as oxygen is essential for cellular respiration, the process by which cells produce energy. Anaerobic organisms, which do not require oxygen, would likely thrive in this environment. The Earth's atmosphere and ecosystem would significantly change, leading to the extinction of many species.
we would be dead
i will be twice as heavy
If the sun exploded it would not give us oxygen; it would simply vaporize Earth.
if it was twice as massive, earth probably have burned, noone would be here, and surviving would be a 1 out of 100,000
Actually I dont know, but I guess the rate of everything happeningnow would be twice as fast.
all human and animal activity would die
If there were no oxygen on Earth, most living organisms, including humans, would not be able to survive as oxygen is essential for respiration. Without oxygen, aerobic organisms would suffocate and eventually die. The atmosphere would likely become unbreathable, leading to widespread extinction of life.
Humans would die, because plants make our oxygen
we well not get oxygen and all earth get die
Double
Days and nights would be twice as long, obviously. The slower rotation would have impacts on the weather, much of which is driven by the Earth spinning. Days would be warmer and nights cooler, for example, because each spot on the Earth would have twice as long in the sunshine to heat up, with twice as long at night for heat to radiate away.
The earth would eventually run out of oxygen. All animals would eventually die.