Answer:
Fossil record, history of life as documented by fossils, the remains or imprints of organisms from earlier geological periods preserved in sedimentary rock. Their ages can be established by comparing the fossils in each layer.
Answer:
the cooler air is H, and the hotter air is L
Explanation: Since the cooler air is less dense it has lower pressure, which is why it sinks. the hotter air becomes less dense because the molecules are faster and spread out hence it has less pressure and rises
Consume a low carbohydrate diet and high protein, avoid fasting
Hemihydrate is the answer because it is a crucial mineral in the construction of dry wall.