Which of the following firearms would have to be cleaned from the muzzle end? A, Break Action A, Break Action Break Action B, Lever Action B, Lever Action Lever Action C, Bolt Action C, Bolt Action Bolt Action D, Pump Action D, Pump Action Pump Action

Which of the following discoveries would be most likely to cause a scientific paradigm shift? a. the discovery of more rings around uranus b. the discovery of a new pathogenic virus transmitted by mosquitoes c. the discovery that a dormant volcano is showing signs of activity d. the discovery of a new species of salamander in the amazon rainforest e. the discovery that excess heat is radiating from the center of the earth and causing global climate change