A number of lakes in North America no longer have fish in them. One reason for this is:
A) carbon monoxide dissolves in the water and makes it toxic.
B) the hole in the ozone layer has allowed too much UV to penetrate the water.
C) acid rain has made the water more acidic, causing it dissolve toxic aluminum from the soil.
D) acid rain falling directly onto fish kills them instantly.
C
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Signed in 1648, the ________ ________ ________ set the boundaries among the nation-states of early modern Europe
Fill in the blank(s) with correct word
Family Planning includes all of the following:
A. education about STDs and birth control B. medical services for STDs and birth control C. social services D. all of the above/following
On average, shoreline is being destroyed faster than it is created
Indicate whether the statement is true or false.
Match the landform with the correct description
A) Small deposits that form in the stream channel B) Form where streams enter large lakes or oceans C) Formed by mountain streams emerging onto a flat plain D) Formed by floodwaters on either side of a stream 1) Delta 2) Levee 3) Alluvial Fan 4) Bar