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.
Answer:
not see clearly yrr.........
Answer:Movement makes dolphins stress which can make your insusceptible framework more vulnerable and the flare-up will spread to different dolphins and conceivably other species.