Passive Voice - Geology Eng 3

The Grand Canyon ____ by the Colorado River.

• was carved

• carves

• is carving

The mineral ____ from this mine.

• is extracting

• was extracted

• extracts

Mount Everest ____ by many climbers every year.

• is climbed

• climbs

• was climbing

The fossils ____ millions of years ago.

• were formed

• form

• are forming

The soil ____ away by the wind.

• blows

• was blown

• is blowing

This type of rock ____ under high pressure and temperature.

• forms

• was formed

• is forming

The earthquake ____ by a sudden release of energy.

• is cause

• causes

• was caused

The sediment ____ at the bottom of the lake.

• is depositing

• was deposited

• deposits