Answer:
Oxygen-16 is not used in radioactive dating.
Explanation:
Oxygen-16 is the right answer as this isotope is not used in any type of radioactive dating, instead the oxygen isotopes are used for determening the processes in the living organisms.
Carbon-14 is not correct because it is one of the most commonly used isotopes for radioactive dating, being the most precise to a certain point of age.
Uranium-235 is not correct because it is an isotope commonly used for rafdioactive dating, especially for much longer periods.
Potassium-40 is not correct because in combination with argon-40 it is one of the main isotopes for determening the age through radioactive dating.
Answer:
Drainage divide
Explanation:
A drainage divide is the ridge that divides to drainage basins or sub-basins. A drainage divide, is an elevated area separating neighboring drainage basins. Therefore, in general the greater the drainage basin, the greater the river flow.
The divide occurs on rough land along topographical ridges, and may be in the form of a single set of hills or mountains, known as a dividing range.
Drainage divisions, whatever the scale, occur in elevated terrain like mountain ranges or hills. In example, precipitation falling on one side of the divide will flow into one basin and precipitation falling on the other side will flow into another.
The correct answer is C) Mid-ocean ridges. Hope this helps.
A man named Alfred Wegener proposed that all the continents were one, giant continent which he called Pangaea. He backed up this idea with evidence from other fossil remains. Fossils from animals native to a certain country were appearing on other countries from much further away.
