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They occur at bout 4000 meters below ground level The injection of water into earthquake faults prevents earthquakes from occurring They are usually caused by the oil in the faults Harmful earthquakes can be possibly prevented by causing small harmless earthquake
They occur at about 4,000 meters below ground level. The injection of water into earthquake faults prevents earthquakes from occurring. They are usually caused by the oil in the faults. Harmful earthquakes can be possibly prevented by causing small, harmless earthquakes.
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usual as usual usually as usually
They occur at about 4,000 metres below ground level. The injection of water into earthquake faults prevents earthquakes from occurring. They are usually caused by the oil in the faults. Harmful earthquakes earl be possibly prevented by causing small, harmless earthquakes.
hardly always sometimes usually
They occur at about 4,000 metres below ground level. The injection of water into earthquake faults prevents earthquakes from occurring. They are usually caused by the oil in the faults. Harmful earthquakes earl be possibly prevented by causing small, harmless earthquakes.
They occur at about 4,000 meters below ground level. The injection of water into earthquake faults prevents earthquakes from occurring. They are usually caused by the oil in the faults. Harmful earthquakes can be possibly prevented by causing small, harmless earthquakes.
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