Answer:
A.
Explanation:
The arctic soil is so cold that the ground beneath the tundra surface remains frozen all year. This permanently frozen ground is called permafrost. Each summer, when the sun warms the tundra surface, the top few inches of soil thaw. This melted part is called the active layer.
A sudden shift in the tectonic plates of the earth
The Answer is B Latitude measures North and south,; Longitude measures East and west
This is the Reason I think its B is because Latitude implies the geographic coordinates that determine the distance of a point, north-south of the equator. Longitude alludes to the geographic coordinate, which identifies the distance of a point, east-west of the Prime Meridian.
<em>Hope this helps and can i please have brainliest ?</em>
Because it helps the environment strive and keep its self alive my controlling populations and bringing in new ones