Review skill 1-6

_____ of the Pueblo Indians centered on intensive agriculture.

• (A) The economic activity

• (B) Because the economic activity

• (C) The economy was active

• (D) When the economic activity

In popular terminology, any long snowstorm with ____ is called a blizzard.

• (A) the amount of wind is large

• (B) a large amount of wind

• (C) it is very windy

• (D) very windy

Nuclear power can be produced by fusion, ____ produced by fission.

• (A) it can also be

• (B) it can also

• (C) and it can also be

• (D) and it can also

_____, igneous rocks may be changed into gneisses.

• (A) The temperature is high

• (B) If the temperature is high

• (C) High temperature

• (D) If high temperature

In 1905, Henry Flagler ___ his plans to extend his Florida East Coast.

• (A) it was announced

• (B) announcement

• (C) the announcement of

• (D) announced

The sound ____ from a vibrating object will be high or low depending on the number of vibrations.

• (A) comes

• (B) it is coming

• (C) is coming

• (D) coming

During the late 1880s, urban streetcars were electrified through ____ large motors.

• (A) they used

• (B) used

• (C) the use of

• (D) when they used

____ almost 274 square miles, but 96 percent of the park is under water.

• (A) Although Biscayne National Park encompasses

• (B) Biscayne National Park encompasses

• (C) Biscayne National Park encompassing

• (D) Biscayne National Park

Legislation ____ in 1916 and 1917 gave the Wilson administration authority to intervene in the national economy if it proved necessary.

• (A) it was passed

• (B) was passed

• (C) passed

• (D) passes

Because a family of birds set up housekeeping in Joel Chandler Harris's mailbox when the birds were in need of a place to stay, ____ the Wren's Nest.

• (A) the home is named

• (B) so the home is named

• (C) naming the home

• (D) the home's name