As a developing country reaches the status of industrialized, what happens to the birth rate?

The blue segment below is a diameter of oo. what is the length of the radius of the circle?

What is the biggest country in south america?

Altocumulus, altostratus, cirrocumuls, cirrostratus, cirrus, cumulonimbus, cumulus, nimbostratus, stratocumulus, stratus 8.) clouds with tallest vertical development 9.) low altitude clouds in solid layers that produce rain 10.) high altitude thin flat layers of clouds 11.) rain clouds that form under stable atmospheric conditions 12.) middle altitude clouds with globular appearance