Which of the following statements correctly describe past temperatures based on the graph above?SELECT 2A. Temperatures have generally increased over the past 20,000 years. B. Periods with warmer temperature than present occur approximately every 50,000 years. C. The most recent ten thousand years and 120,000-130,000 years ago were generally warmer than the time interval between them. D. The most recent millennium (1000 years) is the warmest in the past 420,000 years. E. Periods when the temperature was warmer than the present are more common than periods when the temperatures were colder than the present.

A. Temperatures have generally increased over the past 20,000 years.

C. The most recent ten thousand years and 120,000-130,000 years ago were generally warmer than the time interval between them.

Explanation:

Looking at the far right of the graph, one can see that the temperatures have been steadily rising until the graph ends. The time period there is the last 20,000 years until present so it can be said that temperatures have increased for the past 20,000 years.

Also looking again one can see that apart from the past 10,000 years, the last time temperatures were quite high was 120,000 - 130,000 years ago and the period in-between was not as warm.

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