Answer: Pseudoscience such as astrology are almost untestable and have no basis in science. Science must follow the scientific method.
step one- Construct a Hypothesis
step two- test that hypothesis
step three- analyze your findings and draw a conclusion.
step four- communicate your findings
So the correct answer C.
Hope this helps!
Can you provide more details so that I can answer your question properly?
Attached is the image of the concerned ECG reading.
In reading the ECG, first you read the heart rate. To read the heart rate, you must count for the number of small boxes in between QRS complexes, specifically R-R intervals. These number of small boxes will then be used to divide 1500. In this example, there are 20 small boxes between R-R intervals. 1500 divided by 20 is 75, so the heart rate of this ECG reading is 75 beats per minute.
<em>Another way, albeit less accurate, is to count the big squares between R-R intervals and instead of dividing it by 1500, you divide it by 300.</em>
Answer: Solution in Water
Explanation:
I believe this refers to the reaction between Zinc and Hydrochloric acid.
When this happens, the solution will be Zinc Chloride but as it happened in a solution (the acid), the resulting Zinc Chloride salt would be in aqueous form which means that it would be a solution in water which is the other product of this reaction.
Had the zinc reacted with gaseous HCI, it would have resulted in a Zinc Chloride with no liquid in it.