The answer to your question is d :)
The earliest of civilizations were based around river valleys. This allowed them to irrigate fresh water to their crops allowing for better farming and therefore, bigger and better civilizations.
In Simon Bolivar's Message to the Congress of Angostura, he states that Latin American people deserve their independence.
Answer:
c.The atmosphere, a plant, a herbivore, a decomposer, then back to the atmosphere.
Explanation:
The carbon cycle is the biogeochemical cycle through which carbon is exchanged between the biosphere, pedosphere, geosphere, hydrosphere and Earth's atmosphere. Together with the nitrogen cycle and the water cycle, the carbon cycle comprises a sequence of events that is key to making the Earth capable of sustaining life; describes the movement of carbon when it is recycled and reused by the biosphere, including carbon sinks.
A single carbon atom would more likely go from the atmosphere through being absorbed by a plant and, later, it would enter into the organism of a herbivore that eats the plant. After the herbivore dies, the carbon atom would enter into the organism of a decomposer that would expel it back again into the atmosphere.
