The 3Rs by Russell and Burch are known to be the "alternative methods" to improve the treatment of laboratory animals, at the same time to advance the quality of science that uses animals for studies.
The 3Rs are Replacement, Reduction, and Refinement. Replacement is defined as minimizing the pain and suffering of the animals used in research. Reduction is for reducing the number of animals being used, and using healthier animals. Replacement is using alternative to animals such as tissue cultures and computer models.
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Adaption to the land and its resources
Explanation:
migrants and their descendants pushed south and east, adapting as they went.
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2. geothermal power
3. hydroelectric power
Explanation:
I just took it on a test. Hope this helps.
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The bombing was probably mentioned in the film because it was a recent tragic that took place, that could still be affecting the characters or the people around them.
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