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Julli [10]
3 years ago
5

How many years did it take for the population to double from 1 billion to 2 billion?

Biology
2 answers:
melamori03 [73]3 years ago
5 0

Answer: 123 Years

Explanation: It is estimated that the population of the world reached one billion for the first time in 1804. It would be another 123 years before it reached two billion in 1927, but it took only 33 years to rise by another billion people, reaching three billion in 1960.

navik [9.2K]3 years ago
4 0

Answer:

About 33 years

Explanation:

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The carbon cycle shows the movement of carbon in nature. An important component of the carbon cycle are the sinks of carbon. There are two important sinks of carbon dioxide in the carbon cycle which are oceans and green plants.

Green plants require carbon dioxide for photosynthesis while carbon dioxide is absorbed in the oceans as bicarbonate and carbonate ions where it helps to buffer ocean pH.

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Ket [755]

Answer:

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The reason why pepsinogen is released inactive is that it would break down all of the cell's proteins because of its proteolytic nature. For this reason, it is released as a proenzyme and gets activated when reaches the acidic environment provided by the hydrochloric acid secreted by the parietal cells, also in the stomach lining.

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A segment of dna/chromosome containing the instructions for building a protein which will result in a trait is called a ___
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