Follow the four rs (read, right, reduce, and ride) when

The four Rs are followed to avoid a head-on collision and have a safe pathway.

Explanation:

The four Rs in road safety measures are used to avoid the deadliest car accidents. These Rs implies:

Refer to the link for more information:

link

of what agreement it does not show

explanation:

allergens: overstimulate the nerve system

neurotics: attack nerve cells

mutagens: damage or otherwise alter dna sequence

generators: cause defects during growth and development  

carcinogens: cause unchecked cell growth

i hope you get the idea according to me these are the effects that happened.