true
True. Forests play a crucial role in absorbing carbon dioxide from the atmosphere through the process of photosynthesis. When forests are removed, this natural carbon sink is diminished, leading to an increase in carbon dioxide levels in the atmosphere.
True. The main carbon cycle involves the conversion of carbon dioxide into living matter through photosynthesis by plants, which is then released back into the atmosphere as carbon dioxide through respiration and decomposition processes.
No, cyanobacteria helped change the young Earth's atmosphere by producing oxygen through photosynthesis. The accumulation of oxygen in the atmosphere eventually led to the Great Oxidation Event, around 2.4 billion years ago, which transformed the atmosphere to be more oxygen-rich.
False. Air is mostly composed of nitrogen (about 78%) and oxygen (about 21%), with other gases like argon, carbon dioxide, and others making up the remaining 1%.
Magnesium will actually decompose when heated to form magnesium oxide and carbon dioxide. This is a common chemical reaction where magnesium reacts with oxygen from the air to form magnesium oxide, and if there is any carbon present, it can also react to form carbon dioxide.
If your question is really about oxygen then it is false. And oxygen is not increasing in the atmosphere. If you are talking about carbon dioxide, a gas that IS increasing in the atmosphere, then it is true. Carbon dioxide is causing the speeding up of global warming.
False.
True. Forests play a crucial role in absorbing carbon dioxide from the atmosphere through the process of photosynthesis. When forests are removed, this natural carbon sink is diminished, leading to an increase in carbon dioxide levels in the atmosphere.
True. The main carbon cycle involves the conversion of carbon dioxide into living matter through photosynthesis by plants, which is then released back into the atmosphere as carbon dioxide through respiration and decomposition processes.
Carbon Dioxide
No, this is true. Coal is a fossil fuel which holds carbon which has been trapped underground for millions of years. When it is burnt the carbon dioxide is released where it adds to the greenhouse gases in the atmosphere.
false. it produces ATP, electron carriers and carbon dioxide.
False.
One false statement regarding the carbon cycle is that human activities have no impact on altering the balance of carbon between different reservoirs. In reality, activities such as burning fossil fuels and deforestation have significantly increased the amount of carbon dioxide in the atmosphere, leading to climate change.
No, cyanobacteria helped change the young Earth's atmosphere by producing oxygen through photosynthesis. The accumulation of oxygen in the atmosphere eventually led to the Great Oxidation Event, around 2.4 billion years ago, which transformed the atmosphere to be more oxygen-rich.
Actually, carbon dioxide molecules enter the Calvin cycle (light-independent reactions) of photosynthesis, not the light-dependent reactions. In the Calvin cycle, carbon dioxide is converted into glucose with the help of ATP and NADPH produced during the light-dependent reactions.
false