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Holm, Amy E. | 2 |
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Holm, Amy E. – 1987
Tropical forests provide the world with many products and an incredible diversity of plant and animal life. These forests also provide watershed areas, soil control, climate regulation, and winter homes for migrating birds from North America. It is believed that about 40% of tropical forests have already been destroyed in the last 20-30 years,…
Descriptors: Biological Sciences, Ecological Factors, Ecology, Educational Games
Holm, Amy E. – 1986
One of the most critical issues that faces humanity is the world population boom. The high rate of population growth can directly affect sensitive issues such as the state of the environment, economic development, health, resource uses, and consumption. Though we have achieved the capability to override many of nature's limitations, we live in a…
Descriptors: Biological Sciences, Elementary School Mathematics, Elementary School Science, Elementary Secondary Education