For statements 1-6, decide which of them are TRUE and which

For statements 1-6, decide which of them are TRUE and which are FALSE. Tick (/) the necessary box.
1. We know more about global warming than we dont.
2. Because the concentration of greenhouse gases in the atmosphere has risen, temperatures have increased.
3. The scientists are sure of how much the temperature will rise in the next century.
4. By 2100 northern regions will warm less than other regions.
5. Stabilizing emissions can prevent global warming.
6. Global warming will crush the world economy.