In the first box : dolphins and grey seals both sleep with half their brain so that the other half can watch for predators
second box : dolphins sleep and swim at the same time ( i think )
third box : ( im sorry but I'm not sure about this one)
i hope this helps a little :)
Message me and i will send you a old story i have
Which clause is an independent clause?
Answer:
<span>The winter in Norway is long and harsh.
This the answer because an</span><span> </span>independent clause<span> is a sentence.</span>
