The answer to this is mechanic energy.
<span>When the surface layer was dug up, the permafrost was exposed. When the weather warmed, this exposed permafrost would have melted and become soggy, causing the ground underneath the tracks to shift.</span>
Answer:
Umm im a Christian and dont believe in the big bang but i do like to help people but the best one is the Radiation is detected in every direction due to the discovery in the 1960s of cosmic microwave background radiation.
Explanation:
Heavy sedimentary items such as as rocks for example <span />
I believe the substrate for lactic acid formation would be A. Glucose
