"The mass of Substance C is five times the mass of Substance B", the given statement is correct.
Answer: Option D
<u>Explanation:</u>
As Jessie added 16 gm. of Substance A to 4 gm. of Substance B Obtained certain amount of Substance C which can be calculated as follows:
amount of Substance C = Substance A + Substance B = 16 + 4 = 20 gm
Therefore, 20 gram of Substance C was obtained. Here, fourth statement is correct which says the mass of Substance C ifs five times the mass of Substance B to justify this, see the below:

Answer: Special planning must be done for children to protect their lives during hazards.
Explanation:
Children must given lessons and instructions for disaster preparedness in schools, hostels, and in other institutions.
Special instructions must be given to children under special needs for their evacuation in emergency conditions.
Fire extinguisher must be placed at little above the ground so that children can break the glass shield to use fire extinguisher during fire hazards.
Safety equipments must be kept at places which can be easily used and accessed by the children.
Special shelter homes must be prepared for children so that they can reach those places in emergency and can access medical aids in emergency.
Children should prepare a safety kit before hazard which can include raincoat, water bottle, torch, food, money, some small tools, and other necessary items for their safety.
Answer:
The experimental design is called Between Subjects Design or Independet Measure.
Explanation:
In the experimental design "Independet Measures" you have different groups. Each group is tested under certain conditions whereas a member of one group cannot be part of another group. A commonly known case were this experimental design is used is drug testing. One group is given the medication whereas the other group receives the placebo.
<span>Clarisse differentiates herself from other people because of the distinctive way she looks at the world. She reveals this in her conversations with Montag. For example, Clarisse talks to Montag about things he has never considered. She talks about the taste of rain and how there is someone on the moon. In these instances, Clarisse defies...</span>
I would recommend doing your job properly: on time and well, and address all the issues in advance in case this is not possible.
Your supervisor likely has their own supervisor, and they will be stress if they have to report an unfinished job, and this will make your relationship worse