Question

What are the reasons why population growth in developing countries is forecast to exceed population growth in developed countries?

Answer 1

One of the simplest answers is that developed countries are often symbols of modernization and greater levels of education among general society.

Explanation:

A more modern, often characterized as a Western style of thinking, combined with emphasis on education, results in having children at later ages and later marriages because many people decide to work towards becoming financially stable before trying to support a family. I have marked this for double-checking, because I am no expert on population growth, but find this an interesting topic.

Answer 2

Population growth in developing countries will be greater due to lack of education for girls and women, and the lack of information and access to birth control.

Explanation:

In some countries the lack of education for females is enforced due to old traditions or fear of educated women. In other countries the resources are not available.

Information about birth control has not reached some of the most remote places - mostly in Africa. Access to birth control is even less common and unplanned pregnancies occur unchecked.

There are many agencies (and some affected countries) that are attempting to break this pattern, but human population continues to grow at a dangerous rate.

The biggest problem with a huge human population is the ever increasing demand on the world's resources for food, water, and shelter for everyone.

There is more information here:
http://www.dw.com/en/population-growth-challenges-poor-nations/a-17010329