Answer: A. testing a hypothesis
Explanation:
Because you do experiments to test the hypothesis or educated guess.
<span>Patient who is very sick ill can not receive family members in the room because they can pass or sick up something</span>
Answer:
individuals of the same species that live in the same area
Answer: Between 8 and 14
Explanation: Ammonia is an inorganic compound of formula NH₃. Also known as ammonium hydroxide, it behaves as a weak base.
pHydrion paper is a chemical test indicator, i.e., it indicates the pH of a substance.
If inserted in Ammonia, pHydrion will indicate a range of 8 to 14 because in pH scale, indication of base is over 8 and up to 14. The exact number depends on the hydrogen ion concentration of the substance.
<span>A scientist measured an increase in nitrous oxide in the atmosphere. This increase would result in the greenhouse effect. </span>
