The following is the correct order of the whole phosphorus cycle:
1. Erosion and weathering of the rock deposits the phosphorus into water.
2. Aquatic plants absorb and assimilate the dissolved phosphate.
3. A fish consumes aquatic plants.
4. The fish is caught and consumed by a bear.
5. The bear, after a fruitful life, dies from an old age.
6. Decomposition of the dead bear discharged phosphorus into the soil.
7. The soil washes into a lake, where it sinks to the bottom to turn into a sedimentary rock.
Sky is blue everywhere, without clouds of course
It is known as hypothesis.
Before experiments, we should set up a hypothesis so that we can expect what happen. But hypothesis does not always has to be right, that's why we have to do experiments to test.
If a hypothesis matches the experiment result, a theory is formed. If it does not, we should adjust different variables in the experiment and set a new hypothesis again.
Answer:
c.
Explanation:
because is an interval of geological time from about 252 to 66 million years ago.
