Understand the statement and analyse them:
1.
| Statement 1: | Birbal Sahani established the Bohemian National Museum in Prague. |
| Statement 2: | Birbal Sahani is known as the father of modern paleobotany. |
2.
| Statement 1: | Minerals such as silica, calcite or pyrite gradually enter and replace the original biological tissue in petrification. |
| Statement 2: | Casts show the original shape of the organism but does not reveal the internal structure. |
3.
| Statement 1: | The atmospheric nitrogen reacts with the cosmic rays to produce radioactive carbon. |
| Statement 2: | The atmospheric carbon reacts with UV rays to produce carbon dioxide. |