To be effective, a scientific theory must be continually tested. if observations and experiments favor it, a theory can be further developed and refined. if they do not, the theory must be reformulated or rejected. comparing what you know about the predictions of each moon formation theory, determine which observations and experiments have been verified.

Are divergent boundaries responsible for tsunamis?

Which barrier to economic development is shown in the following examples? i. the high rate of hiv infection in underdeveloped nations ii. the use of children as soldiers in uganda’s army in the early 2000s iii. low literacy rates in underdeveloped nations with limited exposure to adequate education a. foreign debt b. political instability c. widespread disease d. low levels of social welfare

Put these ecosystems in order of least biodiversity to most biodiversity 1. mediterranean forest 2. indonesian rain forest 3. arctic ocean