Given a scientific passage and an answer, generate a question for the given answer.

Passage: The last major ice age took place in the Pleistocene. This epoch lasted from 2 million to 14,000 years ago. Earth's temperature was only 5 C (9 F) cooler than it is today. But glaciers covered much of the Northern Hemisphere. In Figure below , you can see how far south they went. Clearly, a small change in temperature can have a big impact on the planet. Humans lived during this ice age. Answer: pleistocene
The last major ice age took place in which era?

Passage: The surface seismic waves do the most damage because they only travel along the surface of the ground. Answer: surface
What type of seismic waves do the most damage?

Passage: In sexually reproducing species, chromosomes are present in cells in pairs. Chromosomes in the same pair are called homologous chromosomes. They have the same genes at the same loci. These may be the same or different alleles. During meiosis, when gametes are produced, homologous chromosomes separate. They go to different gametes. Thus, the alleles for each gene also go to different gametes. Answer: homologous chromosomes
What are chromosomes in the same pair called?