Froggy Jumps Passive voice and vocabulary unit 3 inglés vVersión en línea practice review passive voice and changing planet vocabulary por Verónica Carrillo y Carrillo 1 Air pollution ______ primarily by vehicles and industries a is created b was created c are created 2 The new environmental law ______ last year to reduce carbon emissions a were passed b was passed c are passed 3 Many coastal areas ______ by floods las summer due to rising sea levels a were affected b are affected c was affected 4 The ozone layer ______ by harmful chemicals released into the atmosphere. a were damaged b is damaged c was damaged 5 Extreme weather events, such as hurricanes and tornadoes, ______ more frequently in recent years. a are experienced b is experienced c was experienced 6 The air quality in many cities ______ to unhealthy levels due to pollution a were reduced b was reduced c are reduced 7 Last summer, a severe heatwave ______ in many parts of Europe. a was recorded b is recorded c were recorded 8 Droughts ______ by climate change and overuse of water resources a was caused b is caused c are caused 9 The negative effects of pollution ______ by scientists for decades. a were studied b is studied c was studied 10 Heavy rain and snowstorms ______ as part of the changing weather patterns. a are observed b is observed c was observed 11 Air quality ______ daily by environmental agencies. a are monitored b is monitored c were monitored 12 Many trees ______ by the powerful tornado last month a were destroyed b was destroyed c are destroyed 13 New technologies ______ to combat the effects of climate change a are developed b is developed c was developed
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