Answer:
mass₁=100.0g
time₁=2.70 days
mass₂=x
time₂=8.10 days
8.10/2.70 = 3
100/2 = 50/2 = 25/2 = 12.5 g
x=12.5 g
rapid burial
absence or limited oxygen
undistributed by geological forces
Answer:
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Oral poliovirus vaccine or Sabin vaccine, named for its inventor American physician and microbiologist Albert Sabin, was developed. OPV contains live attenuated (weakened) virus and is given orally.