19(A)

evaluate the significance of major technological innovations in the areas of transportation and energy that have been used to modify the physical environment;

What was one impact on the physical environment of the explosion of the Chernobyl power plant in 1986?

A Costs related to the disaster reached $300 million.

B Some 100,000 square miles of land were contaminated.

C Approximately 250,000 people resettled the area by 2000.

D The plant was shut down permanently and quit producing energy

What technology was among the first to allow humans to start settling the interior of continental landmasses in greater numbers?

A the wheel

B river boats

C steam engines

D automobiles