Ocean sediment core provides a climate record of the past 70 million years.
1880 is the reliable global record which we can say the climate began. Proxies(climate) helps the scientists to determine the climatic patterns even before starting record-keeping.
Some examples of proxies are sub-fossil pollen, lake and ocean sediments, tree rings, and ice cores. Climatic of the time influenced the growth rate of proxies material. It is from proxies where we can recover quantities of particular isotopes from climatic changes.
The combination of proxies can produce temperature reconstruction which is longer the instrumental temperature.
STEM is Science, Tech, Engineering, and Math
Answer:
Statement B is correct.
Explanation:
High Operating Leverage represents higher fixed cost in comparison to variable cost, and thus that means the company will get its break even earlier or we can say with low units, but after break even profits will be higher.
As in the given case Firm A has higher Operating Leverage than Firm B, thus Firm A has lower Break even point but eventually its profit after reaching break even will grow higher.
Thus, Statement B is correct