According the continental drift hypothesis, continents had once been joined together to form a single huge supercontinent called:
a. Rodinia
b. Pannotia
c. Pangaea
d. Caledonian
Answer: c. Pangaea
You might also like to view...
In which of the following steps of a bill proceeding to becoming law does the public have an opportunity to give testimony?
A. Introduction in the House and Senate B. Full committee markup C. Confirmation in the House and Senate D. Field hearings E. All of these events allow the public to give testimony on a bill
Which of the following U.S. states experiences the most thunderstorms each year?
A) Oklahoma B) Florida C) Texas D) Colorado
A type of agriculture that involves a land rotation cycle of crop and fallow years; it is typically practiced in areas with poor soils, such as tropical forests
a. shifting cultivation b. swidden cultivation c. slash and burn cultivation d. all of these are correct
Dredging of a lake bottom
A. can cause sediment pollution. B. may be done to remove toxic pollutants attached to sediment particles. C. may reduce nutrient recycling from sediments. D. All of the choices are correct.