Question

which shows that too much friction is undesirable?
a. pushing furniture
b. lighting a match stick
c. walking on wet floors
d. using the brakes near the spotlight​

Answer 1

$\small\mathfrak\blue{walking..on..wet..floors}$

$\small\red{reason}$

Water can either increase or decrease the friction between two surfaces. Water reduces the friction between rubber tires and road pavements. That's why drivers have to be extra careful not to skid when roads are wet. Water can increase the friction between your fingers and a sheet of plastic.