Earthquakes
Movement of tectonic plates ___________ large mountain ranges like the Himalayas. (form)
has formed
An active volcano is one that ___________ within the last 10,000 years. (erupt)
has erupted
Meteorologists _________ decades investigating the causes of tornadoes. (spend)
have spent
The rescue teams _______________ yesterday. (arrive)
have arrived
Earth ___________ more active in the past 15 years according to seismologists. (be)
has been
An extinct volcano is one that _________ in the last 10,000 years and is unlikely to erupt in the future. (not/erupt)
hasn't erupted
Tornadoes ________ every continent except Antarctica. (hit)
have hit
People must remember that the danger may _____________ with the first wave. (not/pass)
not have passed
New satellite images from space can give us updated views of how the land has being affected.
being --> been
Once the lava has cool down it will turn into solid rock.
cool --> cooled
Due to the EF1 tornado, the roof and doors has been damaged.
has --> have
What was the most devastating Tsunami ever?
was --> has been
Since 1970, scientists have expect about 17 major earthquakes every year.
expect --> expected
The largest volcano on Earth, Mauna Loa in Hawaii, erupting 33 times since 1843.
erupting --> has erupted
Scientists evaluate the rate of the tornado, on the Fujita Scale from F0 to F5, after it passes.
passes --> has passed
Over the years, the world witnessed a continual rise in natural disasters such as tsunamis.
witnessed --> has witnessed
Alaska has more earthquakes than any other US state. How many earthquakes have they had in the last 30 years?
a) 12,000 b) 10,000 c) 15,000 d) 14,000
They have had about 12,000 earthquakes in the last 30 years.
Have you ever wondered where the word volcano comes from?
I have wondered where the word volcano comes from.
I have never (not) wondered where the word volcano comes from.
Every U.S. state has experienced tornadoes. Which state has experienced the most every year?
a) California b) Florida c) Texas d) New Jersey
Texas has experienced the most tornadoes every year.
The biggest Tsuanmi in Indonesia (2004) was reported to have reached a height of ...?
a) 5m b) 50m c) 25m d) 70m
It was reported to have reached a height of 50m.