I may be wrong but maybe oil
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:
skeletal, cardiac, and smooth
Answer:
Skeletal muscle decomposes more slowly than internal organs and nerve tissue after death, but still more quickly than cartilage and bone.
Together, these factors make muscle tissue a good candidate for postmortem change study and well-suited for standard forensic lab examination.