Exe
which of the following practice does not kill
or inhibit the growth of micro-organisms?
a applying tincture of iodine to a cut
b applying saline solution to a cut
c passing water through a sand-filter
d adding chlorine to water
e taking antibiotics for treating a bacterial
throat infection

what is the statement?

the law of original horizontality explains:   why rocks appear in layers. correct answer: b the law suggests that all rock layers are originally laid down (deposited) horizontally and can later be deformed.   the principle is used by geologists to make assumptions about the relative ages of sedimentary rocks.