Organisms that existed over a limited period
Explanation:
Index fossils are organisms that existed within a limited period in the geologic record.
These fossils are indicator fossils that serves as guide to define the relative ages of rocks in a sequence.
Here are some characteristics of index fossils:
- they must have existed over a limited period in their history.
- they must be very distinctive with short evolutionary tend.
- they must be abundant and highly widespread in the stratigraphic column.
Learn more:
Fossils brainly.com/question/7382392
#learnwithBrainly
Electron volts...........
Complementary angles are those whose sum is 90 degrees, right?, then let's find A, A=72 degrees, because its mid point is 36 deg. Then, B = 18 degrees and its mid point is 9 degrees! :)
In a nuclear<span>-fueled </span>power plant<span> – much like a fossil-fueled </span>power plant<span> – water is</span>turned<span> into steam, which in turn drives turbine generators to produce </span>electricity<span>. The difference is the source of heat. At </span>nuclear power plants<span>, the heat to make the steam is created when uranium atoms split – called fission.</span>
