Neritic sediments are mainly comprised of biogenous sediments due to the proximity to the continental shelf
Indicate whether the statement is true or false
False
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Approximately what percentage of incoming solar radiation is absorbed by the surface of the Earth?
A. 47% B. 31% C. 100% D. 4% E. 80%
In all ecosystems energy is eventually lost to the environment via ________
A) trophic levels B) photosynthesis C) heat resulting from respiration D) matter E) radiation and reflection of light
The water in wetlands is
A) always freshwater. B) always saltwater. C) either freshwater or saltwater. D) too polluted to use as a water resource.
Which of the following describes changes in forest cover in Costa Rica since 1940?
A) Costa Rica has been regaining lost forest land since 1940, when strict forest regulations were passed and the country began serious reforestation efforts. B) Costa Rica has lost virtually all of its forests to agriculture since 1940. C) Costa Rica rapidly lost forests from 1940 until the 1980s, but its forests have more than doubled in size since then. D) Costa Rica's forests have changed dramatically in composition since 1940 because the forests have been invaded by European buckthorn and other invasive species. E) Costa Rica's forests increased in size slightly from 1940 until 1985, after which Costa Rica began rapidly losing forests because multinational coffee companies began cutting down rainforest to create coffee plantations.