Is this statement true or false? permafrost is melting across the northern hemisphere, altering ecosystems and damaging roads and buildings across russia.

True

Explanation: Permafrost is a permanent condition in which the ground remains frozen for at least a period of 2 years at a temperature of 0°C or -32°F. This condition is common in mountainous region and areas with high latitude around the North and south poles. Permafrost covers a large area of land in the Northern hemisphere about a quarter of the land area. Permafrost is just a combination of rocks, sand and soil compacted by ice.

d. migration

d. hip hop

it was originated in the 70s while the harlem renaissance occured in the 1920s