The African and South American Continents Are Separating at a Rate

question 98

Multiple Choice

The African and South American continents are separating at a rate of about 3 cm per year, according to the ideas of plate tectonics. If they are now 5000 km apart and have moved at a constant speed over this time, how long is it since they were in contact?

• A) 1.7 million years
• B) 170 million years
• C) 170 thousand years
• D) 1.7 billion years

---

Definitions:

Factorial ANOVA

A statistical test used to determine if there are any statistically significant differences between the means of three or more independent groups, based on multiple factors.

Main Effect

The direct influence of an independent variable on a dependent variable in an experimental design.

Weight Loss Program

A structured plan involving dietary adjustments, exercise, or other strategies aimed at reducing body weight.

Type Of Effect

The specific impact observed in a study, usually categorized by its direction, size, or significance.