Which of the following is true about acid rain?
a. it is more acidic that normal rain.
b. it is less acidic than normal rain.
c. all rain is acid rain.
d. there is no such thing as acid rain.

Which example describes a mutualistic relationship between organisms? young wasps prey on caterpillars. crabs eat the remains of dead fish. tapeworms feed on food in the intestines of cats ants protect a tree on which they feed.

The combining form leuk/o means red true or false

What materials must dams have to produce electricity, and what must occur?