Choose the sentence with the relative clause:

Volcanoes can be deadly. Volcanoes are filled with magma.

• Volcanoes can be deadly and are filled with magma.

• Volcanoes, which are filled with magma, can be deadly.

• Deadly volcanoes are filled with magma.

• Volcanoes, who are filled with magma, can be deadly.

The deadliest tsunami was in 2004. It was in the Indian Ocean.

• The tsunami in the Indian Ocean was deadly.

• The deadliest tsunami was in the Indian Ocean in 2004.

• The deadliest tsunami, which was in the Indian Ocean, was in 2004.

• In 2004, the deadliest tsunami was in the Indian Ocean.

The hurricane, _______ was a level 4 on the Saffir-Simpson scale, caused catastrophic damage.

• which

• who

• where

• when

The Ring of Fire, ______ many volcanic eruptions and earthquakes occur, is a region around much of the rim of the Pacific Ocean.

• who

• which

• when

• where

The Western U.S., ______ there has been a consistent drought and heat wave for the better part of the past few years, has had some of the worst wildfires in history.

• when

• where

• that

• which

A blizzard, _________ is a severe snow storm with winds in excess of 35 mph and visibility of less than a 1/4 mile for more than 3 hours, can be deadly if you are not prepared.

• where

• when

• which

• that

A survival pack, _______ is filled with emergency supplies, can save your life in the event of a natural disaster.

• which

• when

• who

• where

The Krakatoa volcanic eruption, _______ happened in 1883, was so huge it affected the weather around the world.

• when

• where

• which

• who

Indonesia, _____ the Krakatoa eruption took place, is home to 67 volcanoes.

• where

• who

• which

• when

The spring and summer months, ______ tornadoes are most likely to occur, are warm and humid.

• who

• where

• which

• when