Reading Test: Text: Could Sea Otters Save the Planet?
Task one: Chose the multiple-choice item that makes the sentence correct.
1. Sea otters are indigenous to
These furry swimmers could help to combat
Sea otters love to eat
Kelp forests help to reduce the amount of
Humans hunt sea otters for their
Carbon dioxide is a ______ greenhouse gas.
Killer whales eat
Task two:
The more sea urchins the less kelp; the less sea urchins, the more kelp.
If in healthy numbers, sea urchins could keep around 10 million tons of carbon from entering the Earth's atmosphere.
Scientist Chris Wilmers from the University of Santa Cruz recently studied the effect killer whales have on global warming.
Due to the number of otters being so low, the U.S. Endangered Species Act has listed them as threatened.
Humans hunt killer whales, killer whales hunt sea urchins, sea urchins hunt sea otters and sea otters eat kelp.
Both sea urchin populations and kelp forests are growing.
Carbon dioxide retains warmth in the atmosphere.
Wilmers says that otters will be restored to healthy populations along the coast of North America with the next few decades.
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