Answer: A variable is any factor, trait, or condition that can exist in differing amounts or types. An experiment usually has three kinds of variables: independent, dependent, and controlled. The independent variable is the one that is changed by the scientist.
Explanation:
Answer: Sunlight.
Explanation: They use photosynthesis to absorb the sunlight.
Answer:
Ecosystem seems to be the right answer NEVER SECOND GUESS YOUR SELF I have done it and it's the worst thing you can do
The movement of carbon through the abiotic and biotic parts of the carbon cycle is the following:
In the carbon cycle, carbon is moved between the four reservoirs where it is in different states:
- Atmosphere, carbon is in the form of carbon dioxide (CO2) by joining with oxygen in the form of gas.
- Terrestrial biosphere, carbon is found in the elements that make up terrestrial and coastal ecosystems, in non-living organic matter, and in the soil.
- Oceans, carbon is part of the hydrosphere, it is found in dissolved organic carbon, in marine organisms and in non-living matter.
The water vapor produced and released into the atmosphere also promotes gas exchange between the atmosphere and the ocean, allowing carbon to dissolve in the water, where it is fixed by photosynthetic plankton.
- Sediments: carbon is part of the geosphere, the excess carbon in decomposing organic matter, which is not captured and processed by decomposing life forms, it will pile up and sediment at the bottom of the oceans or in the various layers of the earth's crust, where it forms fossils, hydrocarbon deposits or reactive sediments.
During photosynthesis, green plants take CO2 from the abiotic environment and incorporate the carbon into the carbohydrates they synthesize.
Part of these carbohydrates are metabolized by the same producers in their respiration, returning carbon to the surrounding environment in the form of CO2.
That is, the return of CO2 to the atmosphere occurs when living beings oxidize food while breathing, producing CO2.
The final products of combustion are CO2 and water vapor.
Therefore, we can conclude that the movement of carbon between the abiotic environment and biotic factors (living organisms) defines the carbon cycle.
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The correct answer is - India was a separate continent until 45 million years ago.
India and Southeast Asia despite bordering one another have great differences in the flora and fauna. The reason for that is that India was a separate continent until 45 million years ago, while Southeast Asia was part of Asia. Because of the long period of isolation before the collision with the Asian mainland, the flora and fauna of India developed unique characteristics, mostly found only in India, and some being shared between India and Madagascar as it was the last land with which it was in contact before becoming a separate continent and started moving towards Asia. The differences are bigger in the southern half of India, while in the northern half they are lesser and have more similarities with the flora and fauna of Southeast Asia.