Although you have not listed the options it should be:
Standard Precautions describe in detail what type of PPE to use for every situation.
Answer:
a.
they did not co-evolve with the natural species and lack natural controls, like predators
Explanation:
Answer:
the first choice
Explanation:
The reason why it is the first choice is because you would need to experiment twice before concluding your experiment one has to be normal height and the second test has to be higher also the mass on the car also is a factor to the experiment.
Sewage treatment is a natural monopoly
