Age pyramids are the age structure diagrams that represent the number and proportion of people at each age in a population. The base of the age pyramids represents the population in pre-reproductive age which is from 0 to 10 years. The overall shape of an age pyramid indicates if the population is increasing, stationary, or shrinking.

The age structure diagram for a developing nation has a broad base that tapers quickly towards the top. This means that a larger percentage of the population is in the pre-reproductive age group and reproductive age group with a smaller percentage of the population in the post-reproductive age. These countries have a great chance of future population growth.

3 0

4 years ago

If you were to prune the shoot tips of a plant, what would be the effect on the plant and the leaf area index?

I am Lyosha [343]

Leaf area index

The leaf area index (LAI) is the ratio of total projected leaf area per unit ground area, and is widely used to characterize canopy light conditions.

is that clear

6 0

3 years ago

20 POINTS AND BRAINLIEST

Aleksandr [31]

Answer:

Middle layer of the meninges that contains the cerebrospinal fluid

4 0

3 years ago

Do you think that plants can get the building materials they need to grow from soil wateror air? Which ones? Explain your answer

Archy [21]

All of them. Air because in helps make food it also lets the plant breath. Water because it helps move nutrients into the plant. Soil because plants can’t grow without soil.

7 0

3 years ago