An expansive pyramid age-structure diagram best displays the age ranges in a country that is in stage 2 of the demographic transition.
Option d
<u>Explanation:</u>
The shift in demographics from high death rates and high birth rates in societies with lower education, technologies and economically under developed to demographics of low death or birth rates in societies with advanced technology, higher education and persistent economic development and includes the stages between both the scenarios stated is named as demographic transition.
This is to suggest or evaluate the growth rate cycles of the population of the country. There are 3 types of population pyramids namely,
Expansive population pyramids - shows the population that has the greater percentage in younger age groups. Most of the 3rd world nations fall in this category.
Constrictive population pyramids - shows declining birth rates
Stationary population pyramids - depicts equal proportion of population in all age categories.
A: Atoms! Hope this helps ur welcome.
Deserts are A) dry with little organic matter. Although it seems that D might be correct in fact it is not because desert soil is not totally unable to support plant life because in fact some plants grow in the desert and especially following a rain storm the desert can bloom with plant life.
The explanation for the differences in wavelength observed from earth and a distant star with a shift towards the red end of the spectrum is the Redshift- Doppler effect.
<h3>What is the Doppler effect?</h3>
The Doppler effect is the difference that occur between the frequency of a wave in relation to observer from the wave source.
The wavelength changes with change in the frequency.
<h3>How does the Doppler effect explain the redshift?</h3>
As an object moves away from Earth, the waves moves to the red end of the electromagnetic spectrum and becomes elongated. This results to the increase in wavelength.
Therefore, the explanation for the differences in wavelength observed from earth and a distant star with a shift towards the red end of the spectrum is the redshift-Doppler effect.
Read more on Doppler effect here:
brainly.com/question/4052291
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