Environmentalmedium · Past Paper
What is 'Permafrost'?
AIce that never melts in winter
BGround that remains completely frozen for at least two consecutive years
CA type of very cold rain
DThe frost found on window panes
✓ Correct Answer: B — Ground that remains completely frozen for at least two consecutive years
Permafrost is ground (soil or rock and included ice or organic material) that remains at or below 0°C for at least two years.
Share this question
More from Environmental
- Which of the following is a source of soil pollution?
- Which gas is the most abundant greenhouse gas by volume in the atmosphere?
- What is the approximate CO2 concentration in the atmosphere today (rounded)?
- Which gas protects us from harmful ultraviolet (UV) rays?
- The Kyoto Protocol is an international agreement to reduce the emission of: