Answer:When scientists focus on climate from before the past 100-150 years, they use records from physical, chemical and biological materials preserved within the geologic record. Organisms (such as diatoms, forams and coral) can serve as useful climate proxies. Other proxies include ice cores, tree rings, and sediment cores.
Explanation:
Prices are determined in a free market economy through the interactions of supply and demand in the Marketplace <span>where demand is the quantity of a product that buyers are willing to purchase according to a given price and supply is the amount of a product that sellers can vendor to customers at a given price.</span>
Answer:
b
Explanation:
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