Four Seasons Of A Pond

Series: World through the Mask Series

Year Published: 1971

Format: 16mm

Sound: sound

Description: Studies the ecological balance of a pond throughout the year. Shows how plants come to life in spring and tells how the decomposition of humus accelerates releasing gases which enrich and aerate the water. Examines the metamorphosis of a tadpole and shows the development of the snail.

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