Question

daily average snow coverage in siberia
what was the impact of the event shown above?
this highly urbanized area will have an increase in farms.
the ground will unfreeze later which allows fewer trees to be grown.
the snow coverage will not change the soil in siberia.
a heatwave makes the ground thaw earlier which allows for more erosion and mud.

Explanation:

The graph shows snow coverage in Siberia. A heatwave (the yellow - shaded area in June) would cause the ground to thaw earlier. Earlier thawing can lead to more erosion as the soil is exposed earlier and may not be as stable (less frozen), and mud can form more easily. Siberia is not highly urbanized (so the first option is wrong). If the ground thaws earlier (not later), it's not about fewer trees (second option wrong). Snow coverage does affect the soil (third option wrong).

Answer:

A heatwave makes the ground thaw earlier which allows for more erosion and mud.