Science Notebook - Student Edition

36 Population Ecology

Human

Population

Growth

I found this information

on page.

Summarize two examples of events that could produce each of the

following effects.

Effect: decline in world population growth

Events that could produce this effect:

Effect: increase in world population growth

Events that could produce this effect:

Examine the graph below. Then complete the table that follows.

Section 4.2 Human Population (continued)

Main Idea Details

Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.

Percent Increase in Human Population

0.2

0

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

2.2

Percent increase

Year

1950 1975 2000 2025 2050

2003

What are the main reasons for the expected trend in human

population between now and 2050?

Approximate Growth Rate

1950 1975 2000 2025 (estimated)