Question

what happens to ecosystems during a snow drought?
a. they experience heavy rainfall
b. they have an excess of ice fog
c. they face reduced snowfall, affecting habitats
d. they maintain normal snow levels
which seasonal change brings continuous darkness to polar regions?
a. summer solstice
b. katabatic winds
c. midnight sun
d. polar night

Explanation:

First Question (What happens to ecosystems during a snow drought?):

A snow drought means less snow than usual. Option a is incorrect as snow drought doesn't cause heavy rainfall. Option b is wrong as ice fog isn't related to snow drought. Option d is incorrect because a drought implies abnormal (reduced) snow levels. Option c correctly states that reduced snowfall affects habitats, which is logical for a snow drought's impact on ecosystems.

Polar night is the period in polar regions with continuous darkness. Summer solstice (a) has long days, katabatic winds (b) are winds, not a seasonal change for darkness, and midnight sun (c) is continuous daylight. So polar night (d) is correct.

Answer:

c. They face reduced snowfall, affecting habitats

Second Question (Which seasonal change brings continuous darkness to polar regions?):