One problem relating to these entities may be partially explained by the Dole Effect, which relates the ratio of oxygen-18 to oxygen-16 based on types of photosynthesis, which could partially explain the hundred-thousand-year problem of them.
One of these occurrences is named after Karoo, South Africa. One problem relating to these entities may be partially explained by the Dole Effect, which relates the ratio of oxygen-18 to oxygen-16 based on types of photosynthesis, which could partially explain the hundred-thousand-year problem of them. Their frequency is predicted by Milankovitch cycles, and the most recent one contains divisions named for Wisconsin and Greenland. The most recent one culminated in the LGM, and a so-called "little" one occurred in between 1300 and 1800. For 10 points, name these periods in the earth's history when the planet is covered with lots of frozen water.
One of these occurrences is named after Karoo, South Africa.
{ice ages} [accept {glacial ages} or anything that {suggests massive glaciations}]