Exercise 8 GED A
In osmosis, if a membrane separates two solutions, liquid will tend to move from
the side with the stronger solution to the side with the weaker solution. A tea bag
is placed inside a cup of hot water. Which best describes the process of osmosis
in this situation?
Osmosis does not occur because the hot water is the only solution.
The water, having a stronger concentration, moves inside the tea bag.
SO
The water near the tea leaves, having a stronger concentration of tea,
moves outside the tea bag.
The tea leaves, having a weaker concentration, release their juices
into the water
SUU
HISET
e Second
e

On a recent expedition to a remote region of northern canada, scientists uncovered skeletal remains from about 100,000 years ago. surprisingly, all the skeletal remains, which included many species from differing biological families and spanned about two thousand years, showed evidence of experiencing temperatures in excess of 1000 degrees fahrenheit (or 538 degrees celsius). which of the following, if true, best explains the apparent paradox between the cold environment and the evidence of the bones experiencing hot temperatures? (a) chemical changes that naturally occur during the process of decay in only one north canadian species produce the same evidence of the species' skeletons being exposed to hot temperatures as the expedition scientists found. (b) a little over 103,000 years ago, a large fire is known to have occurred in northern canada. (c) strong evidence exists that as early as 70,000 years ago, homo sapiens around the world relied heavily on fire to cook animals. (d) in the same expedition and in roughly the same layer of excavation, scientists found rudimentary wood cutting and hunting tools used by early humans.

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