GEOLOGY

Detailed explanation-1: -The correct answer for the question that is being presented above is this one: “a. ice cores.” Clues to what ancient climates were like come from all of the following except ice cores.

Detailed explanation-2: -Clues about the past climate are buried in sediments at the bottom of the oceans and lakes, locked away in coral reefs, frozen in glaciers and ice caps, and preserved in the rings of treesTo extend those records, paleoclimatologists look for clues in Earth’s natural environmental records.

Detailed explanation-3: -The climate of ancient Earth is called its paleoclimate, and scientists study it to understand how Earth’s climate might change in the future. In Figure 1, you can see how, in the past, Earth’s climate was either much warmer or much colder than it is today.

Detailed explanation-4: -Answer and Explanation: Evidence about ancient climates indicates that atmospheric carbon dioxide levels were once about 5 times their present levels.

Detailed explanation-5: -The study of ancient climates is called paleoclimatology. It is very important to geologists because it facilitates the reconstruction of sea and land distributions in past time.