The bending of light as it passes around objects is referred to as ____
A) dispersion
B) diffraction
C) refraction
D) reflection
B
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Where has the deadliest political and ethnic conflict, with an estimated war-related 5 million deaths, in the region been?
A) Kenya B) Ivory Coast C) South Africa D) Democratic Republic of the Congo E) Uganda
What type of vegetation is dominant in savannas?
A) needleleaf B) broadleaf deciduous C) grass and shrub D) It is devoid of vegetation.
What are the evidences used by Harry Hess to support the hypothesis of sea-floor spreading?
a. New rock near the ridge b. Oldest rock near the ridge c. Oldest rock farther away d. Both a and c
Seed banks (institutions that store and preserve seeds) are important for ________
A) cash deposits for developing countries B) protecting genetic diversity C) protecting monoculture productivity D) loans to developing countries to promote organic agriculture E) providing farmers with the current year's GM crops