1. Permafrost regions are not always covered in snow.
2. Permafrost regions are mostly in Earth's lower latitudes
3. Permafrost soils also contain large quantities of organic carbon. 

How many of the statements above are correct?

1. Biochar decreases the rate of soil carbon sequestration
2. Improves the soil fertility and crop yield
3. Mitigation of greenhouse gas emissions

1. Carbon dioxide
2. Carbon monoxide
3. Oxides of sulphur
4. Oxides of Nitrogen

How many of the above options are correct?

1. M-STrIPES 
2. UAV (Unmanned Aerial Vehicle)
3. Genetic sampling of scat