Answer:
 a. 0.28
Explanation: 
Given that
 porosity =30% 
 hydraulic gradient = 0.0014
hydraulic conductivity = 6.9 x 10⁻4 m/s
We know that average linear velocity given as



The velocity in m/d      ( 1 m/s =86400 m/d)
v= 0.27 m/d
So the nearest answer is 'a'.
 a. 0.28
 
        
             
        
        
        
Answer:
Develop a written hazard communication program
Implement a hazard communication program
Maintain a written hazard communication program
Explanation:
To find - Which of the following answer options are your employer's responsibility?  Select all that apply.
Develop a written hazard communication program
Implement a hazard communication program
Maintain a written hazard communication program
Solution -
The correct options are -
Develop a written hazard communication program
Implement a hazard communication program
Maintain a written hazard communication program
All are the Responsibilities of an employer
Reason -
The most important duty of the employer is to stay alert and implement a correctly and efficiently written communication program related to hazards of the substances in the workplace.
He also has to maintain the program so that employees do not get affected.
 
        
             
        
        
        
Remote?? maybe I’m not really sure