Recent research on preschoolers suggests that the more the children participate in shared story-reading, their development is faster in oral and written language.

In order to prevent further spread of the deadly plague, the health officials have ordered the bodies of the deceased to be incinerated and that the remains be buried.

A school currently maintains a fixed number of students per class. If the ratio of students per class were to be increased by 1, 10 fewer classes would be run for a total of 120 students. What is the current ratio of students per class?

In the Amazon, the alignment of a fertile ecosystem and isolation from other ecologies during early geological epochs has given rise to a great diversity of species, which, in many genuses, outnumber those in other regions on Earth by 100 to 1.

Olympe de Gouges, an 18th-century French playwright and political activist who lived in Paris, called for government departments hiring women workers and corporations abolishing slavery and child labor.

For some directors, a successful film is marked not so much by box office revenues but instead by critical acclaim garnered through selections at prestigious film festivals.

Carbon dioxide comprises, on average, about 397 parts per million of the Earth's atmosphere, on a molecular basis. In an even sample of the Earth's atmosphere consisting of 4 billion molecules, approximately how many of those molecules would be expected to be carbon dioxide? (1 billion = 1,000,000,000)