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Practice Reading: Fill in The Blanks (Drag & Drop)
ID: #38836
Earth
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Fortunately for life on Earth, the Sun's production of heat is remarkably consistent But scientists are aware that even a small change would have grave consequences for the future, triggering either a new ice age, or runaway global warming. There is that this has happened before. In 17th century England, for example, the River Thames in London was regularly over. Scientists now think that fluctuations in the Sun's temperature caused a 'Little Ice Age' at that time. Indeed, the latest theory is that the processes going on in the centre of the Sun are inherently . If the experts are right, there could be many changes m the Sun's brightness this century and the is that the temperature here on Earth will get hotter and hotter.
evidence
wrapped
exchanging
steadily
likelihood
unstable
marker
frozen
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