The graph shows temperature anomalies for Earth over the last 800,000 years. A temperature anomaly is a variation
from the average temperature. A positive temperature
anomaly indicates a temperature that is higher than
average.
-600,000
-800,000
-200,000
-400,000
Year
Which two trends do the data show?
Please help ASAP !!

multiple periods of warmer, and there are natural cycles or warmer.

Explanation: trust me

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answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.