Answer:
option A
Explanation:
given,
travel distance = 1 mm
diffusion constant for the molecule of oxygen in water = 1 x 10⁻⁹ m²/s
we know that

t is the time taken for diffusion
x = 1 mm = 10⁻³ m
D is the diffusion


t = 500 s
so, the option to the answer is 170 s
the correct answer is option A
Because they have no dignified shape they take on the shape of whate ever container they are in and when you pour in out it can't really take any shape except tho lay flat on the table. and solids do not flow because they have a dignified shape. hope it helps!
Demographic Barriers, Occupation, Age, Obesity, <span>
Psychological Barriers</span>