Gap Fill - Insect Apocalypse - Level 2


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   another      apocalypse      because      bugs      collapse      falling      feed      gardening      half      insects      it      lifetime      number      pesticides      professor      species      strawberries      threat      trend      worldwide  
Scientists say global warming isn't the only to humans. Another big threat is the numbers of insects. Scientists say of all insects have been declining since the 1970s. They warn that over 40 per cent of insect could die out in our . The number of insects is decreasing by 2.5 per cent every year. Scientists are calling an "insect apocalypse". Many species of butterflies, bees and other are now extinct. The scientists say the could trigger, "a catastrophic of Earth's ecosystems".

A professor said used for farming and are killing insects. He said fewer insects mean we cannot people. He told reporters: "Three quarters of our crops depend on insects....Crops will begin to fail. We won't have.... We can't feed 7.5 billion people without ." A worrying is the decline of honeybees. In the USA, the of honeybee groups dropped from six million in 1947 to 2.5 million in 2014. The warned people that: "We can't wait 25 years before we do anything it will be too late."

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