The number post-reproductive age group will decline in number in a population pyramid.
<h3>What is a population?</h3>
A population is a group of organisms of the same same specie living in a defined area of a given habitat.
A population pyramid shows the number of organisms of age groups in a population.
The post-productive age group is characterized by individuals that are too old to have children.
Since they are too old to have children, the post-reproductive age group will decline in number.
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Oxygen in the presence of sunlight
there are many ways of explaining the characteristics of mineral
1. mineral are natural
2.mineral are inorganic
3. minerals are solid
4. definite chemical composition
5. crystalline structure
