Lithosphere

Question 1

what is permafrost?

Answer 1

a layer of permanently frozen soil

Question 2

what do you need to be considered permafrost?

Answer 2

the ground must be 0 degrees celcius or lower for at least two years

Question 3

fill in the blank

in certain regions the upper layer (aka the……) of permafrost thaws in the …… and certain plants and other organisms can grow briefly

Answer 3

active layer

summer

Question 4

give me 3 consequences/effects of a rise in temperature in the permafrost (global warming)

Answer 4

1. softening of the soil, which can damage inrastructure by destabilizing the foundation
2. landslides
3. methane and CO2 (greenhouse gasses) trapped underneath the permafrost can be released, contributing to global warming EVEN MORE

Question 5

what is the layer below permafrost

Answer 5

talik