Answer:
D
Explanation:
Clams naturally filter out contaminants in water
Without the clams, the water quality will drop dramatically, as the local ecosystem will lose its natural filtration system
Answer:
Earthquake or Fault
Explanation:
I would say earthquake but I dont know if its looking for something more specific life a fissure or fault. Anyways its geology related because one of the causes is techtonic plates moving.
That the oxygen levels in the test tube increased and carbon dioxide levels decreased because plants produce oxygen using carbon dioxide
Answer:
The answer is 97%.
Explanation:
The zika virus' 1% incidence rate in the population has no effect over the probability of the patient being infected or not. If the test has a 3% false positive rate that means that if it is positive, the results have a 97% chance of being true. Therefore the chance that the person who took the test and had a positive result being actually infected is 97%.
I hope this answer helps.
