Surface run of or ground water, would be my "Hypothesis"
When you wake up a sleep walker, they will be startled, and can have an outburst.
The answer is B. deflation
<span>The visual cliff is a laboratory device for testing <u>depth perception</u> in infants. This device is basically an apparatus that resembles a cliff, on top of which a child is placed so as to check its perception of depth from the cliff to the bottom of it. This is important so as to check whether the child has visual or motor problems. </span>
Marsupials began to migrate to Australia and New Zealand from North America in the late Cretaceous or early Tertiary period. The route of migration crossed Antarctica and into Australia.
