Which outcome results when increased summer temperatures affect discontinuous permafrost?

💡 Explanation

Thermokarst lakes form because permafrost thaw increases soil instability through thaw subsidence. This is positive feedback, rather than decreasing methane which would slow climate change, therefore A is correct.

• Which mechanism causes island arc formation when oceanic lithosphere subducts beneath other oceanic lithosphere?
• Which property decreases on windward desert rock outcrops due to aeolian abrasion?
• Which change would most impede oceanic uptake of CO2 during plankton blooms within a coastal gyre environment?
• Which outcome results when highly acidic rainfall accelerates mineral weathering?
• Which process causes increased soil acidity above caves?
• Which seismological risk increases at transform fault plate boundaries with creeping sections?