Answer:
(2) 988.5 mb.
Explanation:
The air pressure descends as we ascend. In other words, they are inversely proportional.
The air pressure descends as we ascend the mountain because the air molecules that are above us in high altitudes are fewer than the number of air molecules that are above us in the base of the mountain. So, the exerted pressure of the molecules on ourselves is lower in high altitudes.
Due to the reason mentioned above, we can deduce that the only correct option is option number two since the other ones show increasing or the same pressure, which is not possible as we ascend.
The dissolved sugar molecules is distributed evenly all over the solution.
The equilibrium is reached through diffusion. Diffusion is the net movement of molecules and atoms from a high concentration to area of lower concentration. This is considered as the result of the movement of molecules. Diffusion is driven by a gradient until the molecules are distributed randomly and uniformly all throughout the solution. This can be manifested by perfume sprayed in the air, dye dropped in a water. The distinguishing features of diffusion is that particle move randomly and in uniform pattern.
In this question the options are missing; here is the complete question:
Which of the following forms would you use to gain insight into the daily nutritional habits of a client?
A. Comprehensive client form
B. PAR-Q
C. 3- day dietary record
D. Food intolerance
The correct answer is 3-dietary records
Explanation:
In health, nutritional habits refer to the consistent preferences of an individual when choosing what to eat, as well as, how much to eat and how frequently. This information is key to help people improve their nutritional habits and health, which might include losing weight, reduce the risk of certain diseases, etc.
Additionally, one of the best ways to understand the nutritional habits of a person is through a 3-day dietary record, which is a type of format in which the individual needs to record all foods and drinks for three days including the quantity of each food and drink and the time. This is the best format for this purpose because it specifically focuses on nutritional habits, while others such as PAR-Q or food intolerances are not directly related to this aspect of health.
Belonging to the large family of alcohols, propylene glycol is a chemical element widely used by the food industry thanks to its recognized emulsifying properties. It is referable to its acronym E1520. This colorless, low volatile and soluble diol is also used in many other industries. Pharmaceutical, cosmetic, aeronautic, textile industries ... Propylene glycol is involved in the composition of many polymers such as polyester. Non-toxic when inhaled, propylene glycol is used in electronic cigarette filling fluid to produce an aerosol effect comparable to that of smoke.
With respect to polypropylene glycol, each condensation of propylene glycol causes a loss of a water molecule
C3H8O2 + C3H8O2 + C3H8O2 ==> C9H20O4 + 2H2O
The validity of the hypothesis cannot be confirmed or refuted from only one experiment. By using a series of experiments, the human error or measurement error is reduced to a minimum. Furthermore, more than one factor can be used to determine the validity of the hypothesis.
I will respond to this student that the experiment needs to be repeated multiple times before a conclusion can be drawn! Also, the data will refute or confirm the validity of the hypothesis and not the researcher's own opinion/rational.
