1. 248 million years ago the only continent Pangea was surrounded by world ocean Panthalasa.

2. Earth is rotating in the South - North axis.

3. Equator travels faster than places at higher latitudes. The air at North pole is at rest.

4. Dust in the cloud make it dark.

5. Tornadoes can destroy any thing manmade in it's path.

6. Human rights : Protection from arbitary arrest, forced emigratrion and detention. Prohibit slavery and torture. Condemn execution or imprisonment of one's opinions. They condemn discrimnation. They protect private property and insist on fair trials.