Answer:
DNA plays a very significant role in the field of forensic science. During any criminal investigation, the DNA can reveal the prime guilt or the innocence of a person. The smaller pieces of evidence collected from the crime scene is sufficient for finding out the hint regarding a criminal.
Some of the evidence from which the DNA of a particular person can be identified includes the hair with the roots, tooth with the pulp, bones with bone marrow.
DNA study can also aid in establishing the identity of a missing person, both dead and buried remains. Moreover, the analysis of DNA evidence can help in clarifying paternity and maternity disputes.
D . work rules are inadequate guides to job performance because they don't fit every situation
Your anger will put you in danger cause your mind will not be calm. You will not be patient and you might take risks of accident in your anger. You might crash with a car or have another accident. You would run your car in high speed or break the traffic signal and get multiple fines . You would be in a high risk
Answer:
Employers don't want to train their employees because they fear they'll leave the company — which employees are actually doing more and more frequently these days — which means all the effort and expense of the training process will be wasted.
To calculate the total pore space, we will find the difference between the mass of the soil when it is oven - dried and when it is saturated. Therefore, the value of the total pore space and total porosity are 45g and 45% respectively
Given that a 100 cm3 soil core weighs 78g when oven-dried and 123 g when saturated.
The given parameters are;
Volume of soil V = 100
Mass ( Oven dried)
= 78g
Mass ( Saturated)
= 123g
In the soil formation, pore space refers to the volume of soil. And to calculate the total pore space, we will find the difference between the mass of the soil when it is oven - dried and when it is saturated. That is,
Total pore space =
- 
Total pore space = 123 - 78
Total pore space = 45g
And total porosity will be the percentage of the ratio of total pore space to the given volume of the soil. That is,
Total porosity = (Total pore space / volume of the soil) x 100
Total porosity = 45/100 x 100
Total porosity = 0.45 x 100
Total porosity = 45%
Therefore, the value of the total pore space and total porosity are 45g and 45% respectively
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