Answer:
3+9 = 12
Explanation:
A <em>"counterexample" </em>is an example that shows the falseness of a statement.
Among the choices above,<em> 3+9 = 12</em> is the ideal counterexample. Its sum is an even integer (12); however, its addends are odd integers (3 and 9). So, this goes against the statement above.
The<u> first choice</u> (6+10 = 16) is clearly not a counterexample, but an example of the statement. The <u>second choic</u>e (14+9=23) is not a counterexample because its product is an odd integer, not an even integer. The statement is referring to the condition of an even integer for an answer.
The reddish-orange colour of weathering of volcanic ash is most likely due to its iron sulfide content which oxidizes to iron oxide so that limonite is yellow and hematite is red and in ash since it is such fine grained material it weathers more rapidly because it has a large surface area.