Question

another major difference between glacials and interglacials are the changes in sea level. during a glacial period, sea levels drop an average of 100m as water is evaporated and stored in the growing glaciers and ice sheets. during an interglacial, sea levels rise as ice sheets and glaciers melt with the increase in temperature, thus resulting in an increase in volume of the ocean as water is heated. however, due to the combustion of fossil fuels resulting in an increase in global warming, the icecaps are melting at a more rapid pace annually—raising the sea level by an average of 3.2 mm/yr and over 70 mm since 1995.

1. during a glacial / interglacial, sea levels drop, while during a glacial / interglacial, sea levels rise.
2. human activity like the burning of fossil fuels contributes to sea level rise because...

Explanation:

For question 6, the text clearly states that during a glacial period, sea levels drop and during an interglacial, sea levels rise. For question 7, the text mentions that due to the combustion of fossil fuels (a human activity) resulting in an increase in global warming, the icecaps are melting at a more rapid pace, which causes sea - level rise.

Answer:

1. During a glacial, sea levels drop, while during an interglacial, sea levels rise.
2. Human activity like the burning of fossil fuels contributes to sea level rise because it causes an increase in global warming, which makes the icecaps melt more rapidly.