Thinkers of the scientific revolution believed that:
a. research is less important than strong belief.
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b. the physical world is best explained by religion.
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c. the physical world follows natural laws.
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d. truth is best found in old ideas.

answer is b.

  it is always the best policy to have good communication and good relations between individuals and, specially, between leaders of the countries. for this purpose, among others, there is a common place, the united nations, where the representants can present his and learn about the other country's policies.

less available tax revenue

this basically means that when they get money from taxes wirth having a lower gdp they get less then what others have with a higher gdp