1) About how many years has the earth existed? a) 4,7 billion years b) 5,6 billion years c) 3.5 billion years d) 4,5 billion years e) 6,7 billion years f) 4,6 billion years 2) Climate change is often considered ______________________________________________ a) something that never changes. b) something that changes as living things decompose c) something that changes over time, is something new d) something that only changes when photonsitisis occurs 3) 100 million years ago, the earth was hot and temperatures were about ______________________________ a) 25 degrees Celsius b) 40 degrees Celsius c) 32 degrees Celsius 4) About how many years ago did the earth start to cool? a) 75 million years b) 80 million years c) 60 million years d) 65 million years 5) The changes in Earth`s climate have many different causes. a) False  b) True 6) An example of a cause of climate change that occurs outside the Earth's atmosphere is: a) Earth`s orbit around the sun. b) Volcanic eruptions c) The movement of the continents  7) Each climate zone has its own weather patterns___________________________________ a) landscape, plant and animal life b) people and places c) necessarily oil and industries

Climate Change

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