I’m working on a geology question and need an explanation and answer to help me learn.

Please make sure to find the answers from Chapter 6 and 7, I attached the two chapters below, thanksv

1- (5) How much warmer was the planet 65 million years ago?

2- (10) What caused the temperature to change?

3- (5) How much warmer was the surface air temperature in the Arctic that it was in the 1981-2010 period?

4- (10) What are the two methods used for determining ocean temperature changes? Explain how they show temperature changes.

5- (15) Describe the three hypotheses for cooling during the past 50 million years.

6- (10) How do we know about sea level, temperatures, and climate or the past?

7- (10) What are the limiting CO2 contents for glaciation on Greenland and Antarctica?

8- (40) Explain delta O18 and how it reveals past ice and ocean temperatures.

I’m working on a geology question and need an explanation and answer to help me learn.

Please make sure to find the answers from Chapter 6 and 7, I attached the two chapters below, thanksv

1- (5) How much warmer was the planet 65 million years ago?

2- (10) What caused the temperature to change?

3- (5) How much warmer was the surface air temperature in the Arctic that it was in the 1981-2010 period?

4- (10) What are the two methods used for determining ocean temperature changes? Explain how they show temperature changes.

5- (15) Describe the three hypotheses for cooling during the past 50 million years.

6- (10) How do we know about sea level, temperatures, and climate or the past?

7- (10) What are the limiting CO2 contents for glaciation on Greenland and Antarctica?

8- (40) Explain delta O18 and how it reveals past ice and ocean temperatures.